Product information:
-Operating Range: 10.5V to 16V DC
-Rated Current: 50mA to 180mA
-Rated Voltage: 12V DC
-Detecting Distance: 0.3 to 2.0m5. Ultrasonic Frequency: 40KHz
-HF Frequency: 315MHz, 433MHz
-Display Working Temperature: -30 to 70 degrees C

-How It Works:
-Stage 1:
-Distance: 160 to 200cm
-Area: Safe Mode
-Sound: No sound
-Digital display:1.6-2.0
-Indicate LED Colour: Green

-Stage 2:
-Distance: 100 to 150cm
-Area: Safe Mode
-Sound: Bi------Bi--------Bi
-Digital Display: 1.0 to 1.5
-Indicate LED Colour: Green

-Stage 3:
-Distance: 70 to 90cm
-Area: Alarm Mode
-Sound: Bi---Bi---Bi---
-Digital Display: 0.7 to 0.9
-Indicate LED Colour: Orange

-Stage 4:
-Distance: 40 to 60cm
-Area: Danger Mode
-Sound: Bi-Bi-Bi-
-Digital Display: 0.4 to 0.6
-Indicate LED Colour: Red

-Stage 5:
-Distance: 30cm
-Area: Danger Mode
-Sound: Bi---------
-Digital Display: 0.0
-Indicate LED Colour: Red

Contents in Box:
-1 x LED Display Monitor

-1 x Control Box
-4 x Parking Sensor
-1 x Drill
-1 x Power Cable
-1x Free Car Dashboard Magic Sticky Pad
-1 x User Manual

More information about product:
-Prevent from corner colliding and impacting with special design for easy operating.
-The provoke design for voice makes it more harmonious and attractive.
-The vocal notification of Bi-Bi and digital display show the characteristics, especially at night.
-The appearance of sensor and body of vehicle is a perfect match, just like original binding accessories.
-The humanity design and human voice notification for distance of obstacles.
-His system comes with LED displayer and mini main box, which is easy to find a suitable place in the back of vehicle to install it.
-This is four sensors buzzer system, the buzzer will alarm five different stage sound according to the different and Digital LED showing obstacle distance between your vehicle and target.