Cheap Car Parking Reversing Screen Wireless Alarm System PZ-306-W

PZ-306-W Car Parking Reversing Buzzer 4.3inch LCD Screen Reverse Parking Sensors Automatic Wireless Parking Wireless Alarm Assistance System Sat Nav/Gps/Car Electronics

Voltage: 9DCV-15DCV 
Rated voltage: 12DCV 
Power cost: Max 0.5W 
Respond distance: 0.3m-2.0m 
Alarm distance: 0m-2.0m 
Display mode: LED display 
Sensor diameter: 22mm 
Install mode: drill 
Sensor angle: X/Y/60degree 
Alarm type: Buzzer (Bi Bi...) 
Alarm volume: 65dB 
Alarm frequency 1.6-2.0m: 0.5 HZ(slowness)1.1-1.5m: 1 HZ(slowness) 
0.6-1.0m: 3 HZ(commonly); 0-0.4m: BI.

Features
1. Numeral and color LED display. 
2. Alarm by three-step Bibi sound. 
3. Left and right obstacle indication. 
4. Numeral display from 0m to 2.0m 
5. Easy to install. 
6. Stable quality.