Features:
4 sensor system， double CPU and advanced chipset for enhanced coverage and detection (0-2.5m).
With digital colored LED display (number & light).
With sound alert when the 4 sensors detect dangers.
The closer the obstacles， the louder and faster the sound alert.
Help to prevent dangerous and costly collisions.
Help to provide increased safety for passengers， pedestrians and family members who happen to be around the moving vehicle.
Detect small children and low walls as well.
Anti-freeze and rain proof.
Easy to install.
A saw drill head included.

Specifications:
Rated voltage: 12V DC
Operating voltage range: 9V - 16V DC
Rated current: 20 - 200mA
Detecting distance: 0 - 2.5m
Ultrasonic frequency: 40KHz
Display size: 13 * 1.6cm
Main control box size: 10.5 * 6 * 2cm
Main control box weight: 63g

Item Includes:
1 * Main Control Box
1 * Monitor
4 * Parking Sensors with 2.5M Line
1 * Hole Saw
1 * Power Cable
2 * Double Side Sticker
1 * User Manual