Car Parking Sensor Assistant 4 Sensor Flat Sensors Reverse Sound Buzzer Alarm Sound

Help to prevent dangerous and costly collisions.Help to provide increased safety for passengers, pedestrians and family members who happen to be around moving vehicle.Detect small children and low walls as well.Anti-freeze and rain proof.Easy to install.Current: Less than 200mAInput Power: 12V DCWorking temperature: -30 ~ + 70 CVoice Alarm: 80dBUltrasonic frequency: 40 KHzSensor detection range: 0~ 2.0 mDiameter of sensor:16.5mmMaterial:plasticcolour:BlackPackage Contents:1 x Main Control Box4 x Parking Sensors1 Cable1 X Hole Saw1 X Buzzer AlarmOnly above package content, other products are not included.Note: Light and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +\/- 1-3cm.