Wireless LED parking sensor with 4 sensors 
Model No.: CT323-4 

Features and Functions

Wireless CPU to display communications,no wires between the main board and the display.
Digital LED showing obstacle distance
Alarm by Bi-Bi sound
LED display with three colors (Red, yellow & green)
Crescent shape digital display screen
Turn on/off the voice according to your desire
All kinds of sensor colors and styles are available
High quality and easy to install

Technical Parameters

Rated Voltage: 12V DC
Operating Range: 10.5V～ 16V DC
Rated Current: 50mA～ 180mA
Detecting Distance: 0.3～ 2.0m
Ultrasonic Frequency: 40KHz
HF Frequency: 315MHz / 433MHz
Display Working Temperature: -30 ～ +70℃