CARLO GAVAZZI LDP2PA2DU24 Loop Detector with Dual SPDT Relays
Enhance your vehicle detection and access control systems with the CARLO GAVAZZI LDP2PA2DU24 loop detector. Designed for parking, drive-through, and vehicle access applications, this robust device offers automatic tuning, high sensitivity, and versatile relay outputs.
Product Features
Loop input inductance range: 20 μH to 1000 μH
Adjustable sensitivity in 10 steps from 0.01% to 1.00%
Automatic loop frequency tuning with 4 adjustable channels to prevent crosstalk
Automatic Sensitivity Boost (ASB) for reliable high-bed vehicle detection
Selectable fail-safe and fail-secure modes
Two SPDT relay outputs, configurable as pulse or presence switching
Multicolor LED indicators for power, fault, and loop status diagnostics
Loop fault detection: short circuit, open circuit, inductance out of range, crosstalk
Directional logic for dual loop models to determine vehicle direction
Wide power supply range: 24-240 VAC/VDC, 45-65 Hz
Technical Specifications
Parameter
Details
Power Supply
24 ... 240 VAC/VDC, 45 ... 65 Hz
Power Consumption
24 VAC/VDC < 2 W / 2.5 VA; 115 VAC/VDC < 2 W / 3 VA; 240 VAC/VDC < 2 W / 4 VA
Outputs
2 x SPDT relays, rated at 250 VAC/VDC, 5A (AC1), 1A (DC1)
Response Time
130 ms
Loop Input Inductance
20 μH to 1000 μH
Sensitivity Adjustment
0.01% to 1.00% in 10 steps
Frequency Range
10 to 130 kHz with 4 adjustable channels
Fault Detection
Loop short circuit, open circuit, inductance out of range, crosstalk
Indicators and Diagnostics
Green LED: Power OK
Blue LED: Automatic Sensitivity Boost active
Yellow LED: Low signal indication
Red LED: Channel crosstalk or fault
White LED: Frequency channel indication
Multicolor LEDs for individual loop status and fault diagnostics
Applications
Parking and vehicle access control for barriers, gates, and bollards
Activation of street bollards and entrance/exit points
Vehicle detection at traffic lights, toll booths, and gantries
Lighting activation in parking ramps and driveways
Vehicle direction detection with dual loop models
Part Number: LDP2PA2DU24
Manufacturer: CARLO GAVAZZI
Country of Origin: LT
UOM: EA
ECCN:
Package Type:
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{"id":10026825679165,"title":"LDP2PA2DU24","handle":"ldp2pa2du24","description":"\u003ch3\u003eCARLO GAVAZZI LDP2PA2DU24 Loop Detector with Dual SPDT Relays\u003c\/h3\u003e\n\u003cp\u003eEnhance your vehicle detection and access control systems with the CARLO GAVAZZI LDP2PA2DU24 loop detector. Designed for parking, drive-through, and vehicle access applications, this robust device offers automatic tuning, high sensitivity, and versatile relay outputs.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLoop input inductance range: 20 μH to 1000 μH\u003c\/li\u003e\n\u003cli\u003eAdjustable sensitivity in 10 steps from 0.01% to 1.00%\u003c\/li\u003e\n\u003cli\u003eAutomatic loop frequency tuning with 4 adjustable channels to prevent crosstalk\u003c\/li\u003e\n\u003cli\u003eAutomatic Sensitivity Boost (ASB) for reliable high-bed vehicle detection\u003c\/li\u003e\n\u003cli\u003eSelectable fail-safe and fail-secure modes\u003c\/li\u003e\n\u003cli\u003eTwo SPDT relay outputs, configurable as pulse or presence switching\u003c\/li\u003e\n\u003cli\u003eMulticolor LED indicators for power, fault, and loop status diagnostics\u003c\/li\u003e\n\u003cli\u003eLoop fault detection: short circuit, open circuit, inductance out of range, crosstalk\u003c\/li\u003e\n\u003cli\u003eDirectional logic for dual loop models to determine vehicle direction\u003c\/li\u003e\n\u003cli\u003eWide power supply range: 24-240 VAC\/VDC, 45-65 Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 ... 240 VAC\/VDC, 45 ... 65 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VAC\/VDC \u0026lt; 2 W \/ 2.5 VA; 115 VAC\/VDC \u0026lt; 2 W \/ 3 VA; 240 VAC\/VDC \u0026lt; 2 W \/ 4 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e2 x SPDT relays, rated at 250 VAC\/VDC, 5A (AC1), 1A (DC1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e130 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop Input Inductance\u003c\/td\u003e\n\u003ctd\u003e20 μH to 1000 μH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity Adjustment\u003c\/td\u003e\n\u003ctd\u003e0.01% to 1.00% in 10 steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e10 to 130 kHz with 4 adjustable channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Detection\u003c\/td\u003e\n\u003ctd\u003eLoop short circuit, open circuit, inductance out of range, crosstalk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIndicators and Diagnostics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGreen LED: Power OK\u003c\/li\u003e\n\u003cli\u003eBlue LED: Automatic Sensitivity Boost active\u003c\/li\u003e\n\u003cli\u003eYellow LED: Low signal indication\u003c\/li\u003e\n\u003cli\u003eRed LED: Channel crosstalk or fault\u003c\/li\u003e\n\u003cli\u003eWhite LED: Frequency channel indication\u003c\/li\u003e\n\u003cli\u003eMulticolor LEDs for individual loop status and fault diagnostics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eParking and vehicle access control for barriers, gates, and bollards\u003c\/li\u003e\n\u003cli\u003eActivation of street bollards and entrance\/exit points\u003c\/li\u003e\n\u003cli\u003eVehicle detection at traffic lights, toll booths, and gantries\u003c\/li\u003e\n\u003cli\u003eLighting activation in parking ramps and driveways\u003c\/li\u003e\n\u003cli\u003eVehicle direction detection with dual loop models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePart Number: LDP2PA2DU24\u003cbr\u003e\nManufacturer: CARLO GAVAZZI\u003cbr\u003e\nCountry of Origin: LT\u003cbr\u003e\nUOM: EA\u003cbr\u003e\nECCN: \u003cbr\u003e\nPackage Type: \u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-CG\/LDP2PA2DU24.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eNote: Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-15T16:17:03+05:30","created_at":"2025-08-15T16:17:04+05:30","vendor":"Waldom Electonics","type":"","tags":["CARLO","IMPORT_CSV","IMPORT_PT2","LDP2","WLDM"],"price":2137766,"price_min":2137766,"price_max":2137766,"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":50623202754877,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"LDP2PA2DU24","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"LDP2PA2DU24","public_title":null,"options":["Default Title"],"price":2137766,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"LDP2PA2DU24","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/51150354.png?v=1755254824"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51150354.png?v=1755254824","options":["Title"],"media":[{"alt":null,"id":45852712468797,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51150354.png?v=1755254824"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51150354.png?v=1755254824","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eCARLO GAVAZZI LDP2PA2DU24 Loop Detector with Dual SPDT Relays\u003c\/h3\u003e\n\u003cp\u003eEnhance your vehicle detection and access control systems with the CARLO GAVAZZI LDP2PA2DU24 loop detector. Designed for parking, drive-through, and vehicle access applications, this robust device offers automatic tuning, high sensitivity, and versatile relay outputs.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLoop input inductance range: 20 μH to 1000 μH\u003c\/li\u003e\n\u003cli\u003eAdjustable sensitivity in 10 steps from 0.01% to 1.00%\u003c\/li\u003e\n\u003cli\u003eAutomatic loop frequency tuning with 4 adjustable channels to prevent crosstalk\u003c\/li\u003e\n\u003cli\u003eAutomatic Sensitivity Boost (ASB) for reliable high-bed vehicle detection\u003c\/li\u003e\n\u003cli\u003eSelectable fail-safe and fail-secure modes\u003c\/li\u003e\n\u003cli\u003eTwo SPDT relay outputs, configurable as pulse or presence switching\u003c\/li\u003e\n\u003cli\u003eMulticolor LED indicators for power, fault, and loop status diagnostics\u003c\/li\u003e\n\u003cli\u003eLoop fault detection: short circuit, open circuit, inductance out of range, crosstalk\u003c\/li\u003e\n\u003cli\u003eDirectional logic for dual loop models to determine vehicle direction\u003c\/li\u003e\n\u003cli\u003eWide power supply range: 24-240 VAC\/VDC, 45-65 Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 ... 240 VAC\/VDC, 45 ... 65 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VAC\/VDC \u0026lt; 2 W \/ 2.5 VA; 115 VAC\/VDC \u0026lt; 2 W \/ 3 VA; 240 VAC\/VDC \u0026lt; 2 W \/ 4 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e2 x SPDT relays, rated at 250 VAC\/VDC, 5A (AC1), 1A (DC1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e130 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop Input Inductance\u003c\/td\u003e\n\u003ctd\u003e20 μH to 1000 μH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity Adjustment\u003c\/td\u003e\n\u003ctd\u003e0.01% to 1.00% in 10 steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e10 to 130 kHz with 4 adjustable channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Detection\u003c\/td\u003e\n\u003ctd\u003eLoop short circuit, open circuit, inductance out of range, crosstalk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIndicators and Diagnostics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGreen LED: Power OK\u003c\/li\u003e\n\u003cli\u003eBlue LED: Automatic Sensitivity Boost active\u003c\/li\u003e\n\u003cli\u003eYellow LED: Low signal indication\u003c\/li\u003e\n\u003cli\u003eRed LED: Channel crosstalk or fault\u003c\/li\u003e\n\u003cli\u003eWhite LED: Frequency channel indication\u003c\/li\u003e\n\u003cli\u003eMulticolor LEDs for individual loop status and fault diagnostics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eParking and vehicle access control for barriers, gates, and bollards\u003c\/li\u003e\n\u003cli\u003eActivation of street bollards and entrance\/exit points\u003c\/li\u003e\n\u003cli\u003eVehicle detection at traffic lights, toll booths, and gantries\u003c\/li\u003e\n\u003cli\u003eLighting activation in parking ramps and driveways\u003c\/li\u003e\n\u003cli\u003eVehicle direction detection with dual loop models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePart Number: LDP2PA2DU24\u003cbr\u003e\nManufacturer: CARLO GAVAZZI\u003cbr\u003e\nCountry of Origin: LT\u003cbr\u003e\nUOM: EA\u003cbr\u003e\nECCN: \u003cbr\u003e\nPackage Type: \u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-CG\/LDP2PA2DU24.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eNote: Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
Unfortunately I havent tested the 5G, Only difficult part was connecting antennas. But everything is good, by default it runs on Qualcom's QMI mode, Had to switch to MBIM and it works good with Windows. Planning to run with OpenWRT soon.
