Hign-concerned Chemical:NoneOSD Language:EnglishTalk Range:Detecting Distance 0-2.5m / 0-8.2ftModel Name:LCDType:InvisibleBrand Name:hippcronOrigin:Mainland ChinaMaterial:PlasticCertification:CEDisplay Screen: 6.8cm * 2.3cm 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 4 * Parking Sensors with 2.5M Line(If you need other colors, please choose another color package and leave a message on the order) 1 * Hole Saw 1 * Power Cable 2 * Double Side Sticker 1* User manuar