OSD Language:EnglishTalk Range:0-2.5 mModel Name:QP1005Type:VisibleBrand Name:RisingonMaterial:ABSOrigin:Mainland ChinaCertification:NoneFeature 1::4 sensor systemFeature 2::prevent dangerous and costly collisionsFeature 3::With digital colored LED displayFeature 4::Detect small children and low walls as wellFeature 5::parking sensors for carsSensor Diameter::22 mmRisingon Car Parktronic LED Parking Sensor Kit Radar Display Backup Monitor Detector System Sensor's Diameter: 22 mm Features: Rate voltage: 12V DC Rate operating range: 10.5V - 16V DC Rate current: 100mA - 300mA Detecting distance: 0.3 - 2.0m Ultrasonic frequency: 40KHz Control moudle working temperature: -30 - 80 celcius degree Main control box size: 90* 61 * 22mm Package including: 1 * Main Control Box 1 * Buzzer display (Beeper Designed In the Display) 4 * Parking Sensors 1 * Hole Saw 1 * Power Cable 2 * Double Side Sticker 1* User manual