Buzzer parking sensor
Specifications:
 Digital LED showing obstacle distance
 Alarm by Bi-Bi sound
 The switch on the top of the display can switch on/off the voice
 LED display with two colors (Red & yellow )
 Crescent small shape digital display screen
6 sensors
 All kinds of sensor colors and styles are available
 High quality and easy to install
Technical Parameters:
Rated Voltage: 12V DC
Rated Current: 50mA~ 180mA
Rear Detecting Distance: 0.3~ 2.0m
Front detecting distance: 0.3-1.0m
Ultrasonic Frequency: 40KHz
Display Working Temperature: -30 ~ +70℃
ALARM SOUND
Stage  | Distance  | Area  | Sound  | Digital display  | 
1  | 160-200cm  | Safe Mode  | No sound  | 1.6-2.0  | 
2  | 100-150cm  | Safe Mode  | Bi---Bi---Bi  | 1.0-1.5  | 
3  | 40-90cm  | Alarm mode  | Bi-Bi-Bi  | 0.4-0.9  | 
4  | 0-40cm  | Danger Mode  | Bi------  | 0.0  |