USR-DR404 is a DIN-Rail RS485 to Wi-Fi converter which can realizes bidirectional transparent transmission between RS485 and Wi-Fi / Ethernet.
USR-DR404
RS485 to Wi-Fi/Ethernet Converter
USR-DR404 is a device that can realize data communication between RS485 and Ethernet/Wi-Fi. Through this device, the communication between the on-site serial device and the remote SCADA system can be realized. It integrates a wealth of network protocols like MQTT, TCP, UDP etc. and supports a variety of networking methods, suitable for various scenarios.
Ordering Guide
For serial to Wi-Fi/Ethernet convertor, PUSR offers 3 models to meet the needs of customers in different scenarios, and the main differences are shown in the table on the left.
Multiple Networking Options
The USR-DR404 provides a wealth of networking methods to meet customer networking needs.
AP mode: Allow network devices to access USR-DR404 via Wi-Fi or Ethernet.
STA mode: USR-DR404 as a network device accesses other networks via Wi-Fi.
AP+STA mode: Work in AP and STA mode simultaneously.
Bridge mode: The device connected to the Ethernet port of DR404 is equivalent to directly connecting to the upper-level network, and the DR404 is equivalent to being transparent.
Router mode: The device connected to the Ethernet port of DR404 will be assigned an IP by the DR404.
Data Transmission Encryption
Supports SSLTLS encryption in TCP client, HTTP client and MQTT operation modes.
Supports two-way certificates authentication.
Transparent Transmission Mode
Data is transmitted transparently between RS485 and Wi-Fi / Ethernet via TCP/UDP/HTTP Protocol, enabling data transfer between serial port device and network device.
Serial Command Mode
In this mode, USR-DR404 needs work as UDP Client or TCP Client, it allows users to send serial data to different servers. Data, server IP and port information should be included in the data packet sent by the serial device.
Additional Features
Modbus Gateway: Modbus RTU/TCP protocol conversion and multi-host Modbus polling.
Heartbeat Packet Function: Remote server can detect abnormal disconnection from the client using this feature.
Registration Packet Function: The server can identify different clients by using registration packets.
WebSocket Function: It can realize the real-time interaction between the serial device connected to DR404 and the web page on PC.
PUSR: Cloud SCDA Solution
PUSR provides a cloud-based SCADA system that allows users to upload data from field devices to the SCADA system for remote monitoring and data management to realize the potential of the equipment.
Industrial-Grade Design, High Reliability
EFT Protection: Level 3, protect device against damage caused by instantaneous current interference in circuit, such as lightning stroke, power switch, etc.
ESD Protection: Level 4, prevent electrostatic damage equipment, such as dust electrostatic, electric arc environment etc.
Surge Protection: Level 3.
Watchdog: Hardware & software dual watchdog to ensure stable operation without downtime.
Wide Operation Temperature: -40℃~ 85℃
Product Details
Dimension: 28.0*110.0*64.7 mm.
Serial port: 1*RS485. Baud rate range: 300～230.4Kbps.
Ethernet port: 10/100M MDI/MDIX, auto switch between cross and direct connection, 1.5KV electromagnetic isolation.
Power Supply: 5~36V input, terminal block. Installation: DIN-Rail mounting.
Reload button: In the case of forgetting the parameters, long press to restore the factory settings.
The USR-DR404 combined with soil sensors can quickly and effectively acquire multiple sets of important data such as farmland soil temperature, humidity, pH, etc., which is convenient for users to adjust the management method in time, improve management efficiency, and create modern smart agriculture.
Medical Device Data Transmission Solution
The medical equipment transmits the entered data to the cloud server in real time through Wi-Fi network of DR404. Users can quickly complete the collection, storage and analysis of important data.
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{"id":9808309059901,"title":"Wi-Fi Converter Series - USR-DR404","handle":"wi-fi-converter-series-usr-dr404","description":"\u003ch1 style=\"text-align: center;\"\u003eUSR-DR404\u003c\/h1\u003e\n\u003ch3 style=\"text-align: center;\"\u003eDIN-Rail RS485 to Wi-Fi Converters\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eUSR-DR404 is a DIN-Rail RS485 to Wi-Fi converter which can realizes bidirectional transparent transmission between RS485 and Wi-Fi \/ Ethernet.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eUSR-DR404\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eRS485 to Wi-Fi\/Ethernet Converter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eUSR-DR404 is a device that can realize data communication between RS485 and Ethernet\/Wi-Fi. Through this device, the communication between the on-site serial device and the remote SCADA system can be realized. It integrates a wealth of network protocols like MQTT, TCP, UDP etc. and supports a variety of networking methods, suitable for various scenarios.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/1_b4e90471-862e-40b2-a731-98e47b8830fa.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eOrdering Guide\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eFor serial to Wi-Fi\/Ethernet convertor, PUSR offers 3 models to meet the needs of customers in different scenarios, and the main differences are shown in the table on the left.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/2_dd674d96-09a0-4b2d-91cc-11d81d411bda.jpg?v=1738057328\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eMultiple Networking Options\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eThe USR-DR404 provides a wealth of networking methods to meet customer networking needs.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAP mode: Allow network devices to access USR-DR404 via Wi-Fi or Ethernet.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSTA mode: USR-DR404 as a network device accesses other networks via Wi-Fi.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAP+STA mode: Work in AP and STA mode simultaneously.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eBridge mode: The device connected to the Ethernet port of DR404 is equivalent to directly connecting to the upper-level network, and the DR404 is equivalent to being transparent.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eRouter mode: The device connected to the Ethernet port of DR404 will be assigned an IP by the DR404.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/3_1f6a46d8-656b-480a-809d-0fe2687c8b4c.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eData Transmission Encryption\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports SSLTLS encryption in TCP client, HTTP client and MQTT operation modes.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports two-way certificates authentication.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/4_3459294b-d839-4a5f-9970-5a37486b5402.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eTransparent Transmission Mode\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eData is transmitted transparently between RS485 and Wi-Fi \/ Ethernet via TCP\/UDP\/HTTP Protocol, enabling data transfer between serial port device and network device.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/5_b1d5536c-b89b-4fed-bd31-49988c9ee4f5.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eSerial Command Mode\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eIn this mode, USR-DR404 needs work as UDP Client or TCP Client, it allows users to send serial data to different servers. Data, server IP and port information should be included in the data packet sent by the serial device.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/6_b99e72d2-11ba-4c47-a230-e9cb43a5caaf.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAdditional Features\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eModbus Gateway: Modbus RTU\/TCP protocol conversion and multi-host Modbus polling.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eHeartbeat Packet Function: Remote server can detect abnormal disconnection from the client using this feature.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eRegistration Packet Function: The server can identify different clients by using registration packets.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWebSocket Function: It can realize the real-time interaction between the serial device connected to DR404 and the web page on PC.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/7_06591590-50a3-487a-bffa-4fe71df50178.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003ePUSR: Cloud SCDA Solution\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003ePUSR provides a cloud-based SCADA system that allows users to upload data from field devices to the SCADA system for remote monitoring and data management to realize the potential of the equipment.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/8_fddcdc2d-5fbe-467d-8718-1cc4c274a3be.jpg?v=1738057328\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eIndustrial-Grade Design, High Reliability\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eEFT Protection: Level 3, protect device against damage caused by instantaneous current interference in circuit, such as lightning stroke, power switch, etc.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eESD Protection: Level 4, prevent electrostatic damage equipment, such as dust electrostatic, electric arc environment etc.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSurge Protection: Level 3.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWatchdog: Hardware \u0026amp; software dual watchdog to ensure stable operation without downtime.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWide Operation Temperature: -40℃~ 85℃\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/9_d0209328-9978-4250-86ae-9983981e9e63.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eProduct Details\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eDimension: 28.0*110.0*64.7 mm.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSerial port: 1*RS485. Baud rate range: 300～230.4Kbps.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eEthernet port: 10\/100M MDI\/MDIX, auto switch between cross and direct connection, 1.5KV electromagnetic isolation.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003ePower Supply: 5~36V input, terminal block.\u003cbr\u003eInstallation: DIN-Rail mounting.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eReload button: In the case of forgetting the parameters, long press to restore the factory settings.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAntenna Connector: 1*SMA-Female.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eShell: PC+ABS material, V0 antifoaming\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/10_b7242a32-3596-4750-92f1-17d175d92ca5.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eShipping List\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003e1*USR-DR404\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e1*Power Adapter Cable\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e1*Wi-Fi Antenna\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/DR404.jpg?v=1743143656\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e**Power Adapter is not included in the box.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003ePlease use this link to add it to your cart: \u003ca href=\"https:\/\/thinkrobotics.com\/products\/12v-1a-adapter?pid=gid:\/\/shopify\/Product\/9766651593021\"\u003e12V 1A (12W) Power Adapter\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSmart Agriculture\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eThe USR-DR404 combined with soil sensors can quickly and effectively acquire multiple sets of important data such as farmland soil temperature, humidity, pH, etc., which is convenient for users to adjust the management method in time, improve management efficiency, and create modern smart agriculture.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/12_a9175699-578d-4300-8034-a14d01e7408c.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eMedical Device Data Transmission Solution\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eThe medical equipment transmits the entered data to the cloud server in real time through Wi-Fi network of DR404. Users can quickly complete the collection, storage and analysis of important data.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/13_435c3fc0-67b2-4098-9c71-0f816da4ab43.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003ePARAMETER\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEthernet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Number\u003c\/td\u003e\n\u003ctd\u003e1 x WAN\/LAN Ethernet Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffer\u003c\/td\u003e\n\u003ctd\u003eRX\/TX: Max 4K bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003e2KV Electromagnetic Isolation for Ethernet port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Rate\u003c\/td\u003e\n\u003ctd\u003e10\/100 Mbps, MDI\/MDIX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWi-Fi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eFCC\/CE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWi-Fi Standard\u003c\/td\u003e\n\u003ctd\u003e802.11 b\/g\/n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e2.412GHz to 2.484GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmit Power\u003c\/td\u003e\n\u003ctd\u003e802.11b: +19dBm (Max.@11Mbps)\u003cbr\u003e802.11g: +18dBm (Max.@54Mbps)\u003cbr\u003e802.11n: +17dBm (Max.@HT20,MCS7)\u003cbr\u003e+17dBm (Max.@HT40,MCS7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReceive Sensitivity\u003c\/td\u003e\n\u003ctd\u003e802.11b: -89dBm (@11Mbps)\u003cbr\u003e802.11g: -81dBm (@54Mbps)\u003cbr\u003e802.11n: -73dBm (@HT20, MCS7)\u003cbr\u003e-71dBm (@HT40, MCS7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Standard\u003c\/td\u003e\n\u003ctd\u003eRS485: 300 ~ 230.4Kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS485 Interface Protection\u003c\/td\u003e\n\u003ctd\u003eAnti-surge, anti-thunder, overcurrent protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003eDC5 ~ 36V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e109.66 x 28 x 64.71 mm (L x W x H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Mode\u003c\/td\u003e\n\u003ctd\u003eStation\/AP\/AP+Station\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity\u003c\/td\u003e\n\u003ctd\u003eWPA-PSK\/WPA2-PSK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEncryption\u003c\/td\u003e\n\u003ctd\u003eTKIP\/AES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWork Mode\u003c\/td\u003e\n\u003ctd\u003eTransparent transmission \/ Serial command \/ HTTPS Client \/ Modbus TCP \u0026lt;=\u0026gt; Modbus RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetting Command\u003c\/td\u003e\n\u003ctd\u003eAT+ command\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetworking Protocol\u003c\/td\u003e\n\u003ctd\u003eTCP\/UDP\/ARP\/ICMP\/DHCP\/DNS\/HTTPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Client Number in TCP Server Mode\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eWeb server + AT command\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCustomer Application Software\u003c\/td\u003e\n\u003ctd\u003eSupports customized application software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eDOWNLOAD\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 137.156px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[User Manual] USR-DR404 User Manual\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/User%20Manual\/USR-DR404-User-Manual.pdf\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[User Manual] USR-DR404 Quick Start Guide\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/User%20Manual\/USR-DR404-Quick-Start-Guide.pdf\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 39.1875px;\"\u003e[FCC Certificate] FCC Certificates for serial to Ethernet Modules 2019\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 39.1875px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/Certificate\/FCC-Certificates-2019.rar\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[CE Certificates] CE Certificates for serial to Ethernet Modules\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/Certificate\/CE-Certificates-2019.rar\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[Specification] USR-DR404-spec\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/uploads\/20240315\/64b97baafbb982ed6793c0a29f00c946.pdf\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[Application Case] How to Connect Serial to Wi-Fi Converter to PUSR Cloud\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/uploads\/20240903\/6bf92637823033b695423f017ed7d187.pdf\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUtilities\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 39.1876px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[PC Test Software] USR-TCP232-Test-V1.3\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/M4\/USR-TCP232-Test-V1.3.exe\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[Virtual COM Software]USR-VCOM_V5.0.4_Setup\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/uploads\/20241018\/c355c5f354ad1a86ced2533673251366.exe\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocument Files\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.9926%;\"\u003e [Socket Demo] Socket_Demo.zip\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/ndirectory\/[Socket_Demo]-Socket_Demo.zip_1687230152.zip\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","published_at":"2025-02-10T15:27:27+05:30","created_at":"2025-01-28T14:50:09+05:30","vendor":"PUSR","type":"","tags":["APMode","CloudIntegration","DataEncryption","DINRailMount","EdgeComputing","IND-IOT","IndustrialNetworking","ModbusGateway","MQTTSupport","PUSR","PUSR IOT","RemoteMonitoring","RS485toWiFi","SecureData","SmartAgriculture","STAConfig","TransparentTransmission","WatchdogProtection","WideTemperature","WiFiBridge","WLS-IOT"],"price":282999,"price_min":282999,"price_max":282999,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":49851794653501,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"ELC8540","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Wi-Fi Converter Series - USR-DR404","public_title":null,"options":["Default Title"],"price":282999,"weight":450,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/11_71d0a578-659a-4593-a890-ec2a21d30dc0.png?v=1738063440","\/\/thinkrobotics.com\/cdn\/shop\/files\/22_779d40a6-2947-4301-946b-425d61e10560.png?v=1738063458","\/\/thinkrobotics.com\/cdn\/shop\/files\/33.png?v=1738063458","\/\/thinkrobotics.com\/cdn\/shop\/files\/44.png?v=1738063458"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11_71d0a578-659a-4593-a890-ec2a21d30dc0.png?v=1738063440","options":["Title"],"media":[{"alt":null,"id":42821767430461,"position":1,"preview_image":{"aspect_ratio":1.499,"height":373,"width":559,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11_71d0a578-659a-4593-a890-ec2a21d30dc0.png?v=1738063440"},"aspect_ratio":1.499,"height":373,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11_71d0a578-659a-4593-a890-ec2a21d30dc0.png?v=1738063440","width":559},{"alt":null,"id":42821770051901,"position":2,"preview_image":{"aspect_ratio":1.499,"height":373,"width":559,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/22_779d40a6-2947-4301-946b-425d61e10560.png?v=1738063458"},"aspect_ratio":1.499,"height":373,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/22_779d40a6-2947-4301-946b-425d61e10560.png?v=1738063458","width":559},{"alt":null,"id":42821770019133,"position":3,"preview_image":{"aspect_ratio":1.499,"height":373,"width":559,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/33.png?v=1738063458"},"aspect_ratio":1.499,"height":373,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/33.png?v=1738063458","width":559},{"alt":null,"id":42821769986365,"position":4,"preview_image":{"aspect_ratio":1.499,"height":373,"width":559,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/44.png?v=1738063458"},"aspect_ratio":1.499,"height":373,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/44.png?v=1738063458","width":559}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch1 style=\"text-align: center;\"\u003eUSR-DR404\u003c\/h1\u003e\n\u003ch3 style=\"text-align: center;\"\u003eDIN-Rail RS485 to Wi-Fi Converters\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eUSR-DR404 is a DIN-Rail RS485 to Wi-Fi converter which can realizes bidirectional transparent transmission between RS485 and Wi-Fi \/ Ethernet.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eUSR-DR404\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eRS485 to Wi-Fi\/Ethernet Converter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eUSR-DR404 is a device that can realize data communication between RS485 and Ethernet\/Wi-Fi. Through this device, the communication between the on-site serial device and the remote SCADA system can be realized. It integrates a wealth of network protocols like MQTT, TCP, UDP etc. and supports a variety of networking methods, suitable for various scenarios.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/1_b4e90471-862e-40b2-a731-98e47b8830fa.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eOrdering Guide\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eFor serial to Wi-Fi\/Ethernet convertor, PUSR offers 3 models to meet the needs of customers in different scenarios, and the main differences are shown in the table on the left.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/2_dd674d96-09a0-4b2d-91cc-11d81d411bda.jpg?v=1738057328\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eMultiple Networking Options\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eThe USR-DR404 provides a wealth of networking methods to meet customer networking needs.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAP mode: Allow network devices to access USR-DR404 via Wi-Fi or Ethernet.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSTA mode: USR-DR404 as a network device accesses other networks via Wi-Fi.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAP+STA mode: Work in AP and STA mode simultaneously.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eBridge mode: The device connected to the Ethernet port of DR404 is equivalent to directly connecting to the upper-level network, and the DR404 is equivalent to being transparent.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eRouter mode: The device connected to the Ethernet port of DR404 will be assigned an IP by the DR404.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/3_1f6a46d8-656b-480a-809d-0fe2687c8b4c.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eData Transmission Encryption\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports SSLTLS encryption in TCP client, HTTP client and MQTT operation modes.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports two-way certificates authentication.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/4_3459294b-d839-4a5f-9970-5a37486b5402.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eTransparent Transmission Mode\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eData is transmitted transparently between RS485 and Wi-Fi \/ Ethernet via TCP\/UDP\/HTTP Protocol, enabling data transfer between serial port device and network device.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/5_b1d5536c-b89b-4fed-bd31-49988c9ee4f5.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eSerial Command Mode\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eIn this mode, USR-DR404 needs work as UDP Client or TCP Client, it allows users to send serial data to different servers. Data, server IP and port information should be included in the data packet sent by the serial device.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/6_b99e72d2-11ba-4c47-a230-e9cb43a5caaf.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAdditional Features\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eModbus Gateway: Modbus RTU\/TCP protocol conversion and multi-host Modbus polling.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eHeartbeat Packet Function: Remote server can detect abnormal disconnection from the client using this feature.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eRegistration Packet Function: The server can identify different clients by using registration packets.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWebSocket Function: It can realize the real-time interaction between the serial device connected to DR404 and the web page on PC.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/7_06591590-50a3-487a-bffa-4fe71df50178.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003ePUSR: Cloud SCDA Solution\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003ePUSR provides a cloud-based SCADA system that allows users to upload data from field devices to the SCADA system for remote monitoring and data management to realize the potential of the equipment.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/8_fddcdc2d-5fbe-467d-8718-1cc4c274a3be.jpg?v=1738057328\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eIndustrial-Grade Design, High Reliability\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eEFT Protection: Level 3, protect device against damage caused by instantaneous current interference in circuit, such as lightning stroke, power switch, etc.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eESD Protection: Level 4, prevent electrostatic damage equipment, such as dust electrostatic, electric arc environment etc.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSurge Protection: Level 3.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWatchdog: Hardware \u0026amp; software dual watchdog to ensure stable operation without downtime.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWide Operation Temperature: -40℃~ 85℃\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/9_d0209328-9978-4250-86ae-9983981e9e63.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eProduct Details\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eDimension: 28.0*110.0*64.7 mm.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSerial port: 1*RS485. Baud rate range: 300～230.4Kbps.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eEthernet port: 10\/100M MDI\/MDIX, auto switch between cross and direct connection, 1.5KV electromagnetic isolation.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003ePower Supply: 5~36V input, terminal block.\u003cbr\u003eInstallation: DIN-Rail mounting.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eReload button: In the case of forgetting the parameters, long press to restore the factory settings.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAntenna Connector: 1*SMA-Female.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eShell: PC+ABS material, V0 antifoaming\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/10_b7242a32-3596-4750-92f1-17d175d92ca5.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eShipping List\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003e1*USR-DR404\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e1*Power Adapter Cable\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e1*Wi-Fi Antenna\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/DR404.jpg?v=1743143656\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e**Power Adapter is not included in the box.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003ePlease use this link to add it to your cart: \u003ca href=\"https:\/\/thinkrobotics.com\/products\/12v-1a-adapter?pid=gid:\/\/shopify\/Product\/9766651593021\"\u003e12V 1A (12W) Power Adapter\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSmart Agriculture\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eThe USR-DR404 combined with soil sensors can quickly and effectively acquire multiple sets of important data such as farmland soil temperature, humidity, pH, etc., which is convenient for users to adjust the management method in time, improve management efficiency, and create modern smart agriculture.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/12_a9175699-578d-4300-8034-a14d01e7408c.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\n\u003cbr\u003eMedical Device Data Transmission Solution\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eThe medical equipment transmits the entered data to the cloud server in real time through Wi-Fi network of DR404. Users can quickly complete the collection, storage and analysis of important data.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/13_435c3fc0-67b2-4098-9c71-0f816da4ab43.jpg?v=1738057327\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003ePARAMETER\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEthernet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Number\u003c\/td\u003e\n\u003ctd\u003e1 x WAN\/LAN Ethernet Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffer\u003c\/td\u003e\n\u003ctd\u003eRX\/TX: Max 4K bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003e2KV Electromagnetic Isolation for Ethernet port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Rate\u003c\/td\u003e\n\u003ctd\u003e10\/100 Mbps, MDI\/MDIX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWi-Fi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eFCC\/CE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWi-Fi Standard\u003c\/td\u003e\n\u003ctd\u003e802.11 b\/g\/n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e2.412GHz to 2.484GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmit Power\u003c\/td\u003e\n\u003ctd\u003e802.11b: +19dBm (Max.@11Mbps)\u003cbr\u003e802.11g: +18dBm (Max.@54Mbps)\u003cbr\u003e802.11n: +17dBm (Max.@HT20,MCS7)\u003cbr\u003e+17dBm (Max.@HT40,MCS7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReceive Sensitivity\u003c\/td\u003e\n\u003ctd\u003e802.11b: -89dBm (@11Mbps)\u003cbr\u003e802.11g: -81dBm (@54Mbps)\u003cbr\u003e802.11n: -73dBm (@HT20, MCS7)\u003cbr\u003e-71dBm (@HT40, MCS7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Standard\u003c\/td\u003e\n\u003ctd\u003eRS485: 300 ~ 230.4Kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS485 Interface Protection\u003c\/td\u003e\n\u003ctd\u003eAnti-surge, anti-thunder, overcurrent protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003eDC5 ~ 36V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e109.66 x 28 x 64.71 mm (L x W x H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Mode\u003c\/td\u003e\n\u003ctd\u003eStation\/AP\/AP+Station\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity\u003c\/td\u003e\n\u003ctd\u003eWPA-PSK\/WPA2-PSK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEncryption\u003c\/td\u003e\n\u003ctd\u003eTKIP\/AES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWork Mode\u003c\/td\u003e\n\u003ctd\u003eTransparent transmission \/ Serial command \/ HTTPS Client \/ Modbus TCP \u0026lt;=\u0026gt; Modbus RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetting Command\u003c\/td\u003e\n\u003ctd\u003eAT+ command\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetworking Protocol\u003c\/td\u003e\n\u003ctd\u003eTCP\/UDP\/ARP\/ICMP\/DHCP\/DNS\/HTTPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Client Number in TCP Server Mode\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eWeb server + AT command\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCustomer Application Software\u003c\/td\u003e\n\u003ctd\u003eSupports customized application software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eDOWNLOAD\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 137.156px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[User Manual] USR-DR404 User Manual\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/User%20Manual\/USR-DR404-User-Manual.pdf\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[User Manual] USR-DR404 Quick Start Guide\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/User%20Manual\/USR-DR404-Quick-Start-Guide.pdf\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 39.1875px;\"\u003e[FCC Certificate] FCC Certificates for serial to Ethernet Modules 2019\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 39.1875px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/Certificate\/FCC-Certificates-2019.rar\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[CE Certificates] CE Certificates for serial to Ethernet Modules\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/Certificate\/CE-Certificates-2019.rar\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[Specification] USR-DR404-spec\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/uploads\/20240315\/64b97baafbb982ed6793c0a29f00c946.pdf\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[Application Case] How to Connect Serial to Wi-Fi Converter to PUSR Cloud\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/uploads\/20240903\/6bf92637823033b695423f017ed7d187.pdf\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUtilities\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 39.1876px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[PC Test Software] USR-TCP232-Test-V1.3\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/download\/M4\/USR-TCP232-Test-V1.3.exe\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 65.9926%; height: 19.5938px;\"\u003e[Virtual COM Software]USR-VCOM_V5.0.4_Setup\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right; height: 19.5938px;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/uploads\/20241018\/c355c5f354ad1a86ced2533673251366.exe\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocument Files\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.9926%;\"\u003e [Socket Demo] Socket_Demo.zip\u003c\/td\u003e\n\u003ctd style=\"width: 33.6397%; text-align: right;\"\u003e\u003ca href=\"https:\/\/www.pusr.com\/ndirectory\/[Socket_Demo]-Socket_Demo.zip_1687230152.zip\"\u003eDownload \u0026gt;\u0026gt;\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e"}
A good and high quality Smart DMM.. A small suggestion is there could have been a protective cover like a screen guard.. Cheaper Smart DMM s too have such a protective covering.. I noticed some minor scratches on the display, But it's not a deal breaker.. Good value for Money DMM
