Product details Description: Name: Car Reversing Radar Current: <200mA Input voltage: 12V DC Working temperature: -30~70C Voice Alarm: > 80dB Ultrasonic frequency: 40 KHz Detection range: 0~2.0 m Probe diameter: 16.5mm Size: 3.5 Weight: 200g Colour: Black material: metal Quantity: 1 set Package package: 1 car buzzer crescent radar Packing list: Buzzer x 1 Radar host x 1 Probe x 4 Drill bit x 1 Power cord x 1 English instruction x 1 Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks. --4 sensors, more accurate and sensitive. --Advanced chipset for enhanced coverage and detection --Detect small objects and bars. Enables you to prevent dangerous and costly collisions --Provides increased safety for passengers, pedestrians and family members who happen to be around moving vehicles. --After tested: All items are checked and tested carefully by our technical department.