simple parking sensor (SB301-4)

1. Measuring the distance by radar
2. 4 sensors for rear available
3. Alarm by three step Bi-Bi sound
4. Full-weather design, un-affected by wind, ice, snow & rain
5. All kinds of sensor colors and styles are available
6. High quality and easy to install
Technical:
1. Rated Voltage: 12V DC
2. Operating Range: 10.5V-16V DC
3. Rated Current: 50mA-180mA
4. Detecting Distance: 0.3- 1.5m
5. Ultrasonic Frequency: 40KHz
6. Display Working Temperature: -30 - +70c