KD4002 parking sensor features:

1>Parking with voice indicating

2>LED display

3>Sensor eye with water-proof and anti-bump

4>Stop automatically

 

Audible distance indication

1.50 to 0.80M: Bi,Bi,Bi

0.8 to 0.40M: BiBiBi(the closer, the faster)

0.40 to 0M:  Bi....(solid beeping)

General Specifications:

Working voltage:  10 to 15V

Working Temperature: -20 to +80

Current  Consumption:  <100mA

Accoustic volume: >85dM at 10cm

Response time:   300ms

Ultrasonic frequency: 40KHZ