LDTR04plus is an integrated microstrip antenna, radio frequency circuit and signal processing circuit of the full import scheme speed detection radar module, direct output target speed information.It can be used for long-distance vehicle speed measurement over 150 meters. Integrated RF chip with integrated phase-locked loop has high frequency stability and speed measurement accuracy up to 1KM/h. LDTR04Plus is a radar module integrating microstrip antenna, radio frequency circuit and signal processing circuit, which directly outputs the speed information of the target. It can be used for long-distance vehicle speed measurement 150 meters. It adopts integrated radio frequency chip, with extremely high frequency stability and speed measurement accuracy of 1KM/h. Frequency range: 24.18GHz Detection distance: moving vehicle, cart 200m, trolley 150m Support RS485 interface, UART232 (3.3VTTL level signal), baud rate 9600bps Speed measuring range 1Km/h-250Km/h The speed measurement error is less than 1Km/h (when the angle between the moving direction and the azimuth of the radar beam is zero degrees) Voltage: 9-24V, Current: 80mA or 55mA@12V Output power (EIRP): 20dBm Antenna angle: 26X13 Colour:black Material:plastic Package Contents: 1 x radar speedometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.