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mm wave sensor
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LD508PROM speed sensor module
mm wave radar module
Doppler sensor
Doppler speed sensor
Doppler velocity sensor

24GHz Car Doppler Radar Sensor With RS485/TTL Interface

LD508PROM millimeter-wave radar module is specifically designed for detecting multiple dynamic or static targets within a certain range.
This module adopts the FMCW mode, features a non-contact installation design, and is compact in size and structure.

  • 140m long-range detection

  • 0–180 km/h speed measurement, ±0.1 km/h accuracy

  • ±0.1m distance accuracy

  • Detects up to 9 targets (moving or stationary)

  • RS485 with HEX & ASCII protocols

  • 9–24V DC, ultra-low power (~25mA)

  • -45°C to +85°C operation

  • Compact and easy to integrate

Main Parameters

Part number LD508PROM
Transmission frequency 24-24.058GHz
Output Power (EIRP) 13dBm
Horizontal 46°
Vertical 24°
Baud rate 115200Bps
Working voltage 9-24V
Working current 25mA
Working temperature -45℃~+85℃
Working humidity < 93%RH
Overall dimensions(l x w x h) 52*50.23*20 mm
Measuring range 140m
Speed measurement range 0-180km/h
Speed measurement accuracy 0.1km/h
Ranging accuracy ±0.1m
Number of measurement targets 0-9
Start-up time 1s

Get Free Quote of 24GHz Car Doppler Radar Sensor With RS485/TTL Interface

Application

  • Road traffic monitoring

  • Parking space detection

  • Cross-traffic warning systems

  • Automated gate control

  • Industrial speed sensing

  • Smart city infrastructure

What is the speed measurement range?
0-180 km/h, with an accuracy of 0.1 km/h.
How many targets can it detect simultaneously?
Up to 9 targets (dynamic or static).
Can it detect static targets?
Yes, static target detection can be enabled or disabled via commands.
What interface and protocols does it use?
RS485/TTL, supporting both HEX and ASCII protocols (switchable via commands).
What are the power requirements?
9V–24V DC (typical 12V), with low power consumption of approximately 25mA.
What is the operating temperature range?
-45°C to +85°C, suitable for harsh environments.

Custom Service & Technical Support

We provide datasheet, dimension drawing, interface protocol, demo code and technical support.

Support sample test, ODM/OEM customized service, welcome global customers to inquire and cooperate.

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