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 Display working temperature: -20 - 70 celcius degree LED display size: 9 * 1.5cm Display weight: 88g Main control box size: 10.5 * 6 * 2cm Main control box weight: 63g Package including 1 x Main Control Box 1 x LED Display Indicator 4 x Parking Sensors with 2.5M Line 1 x Hole Saw 1 x Power Cable 2 x Double Side Sticker Approvals: CE， RoHS Certification Superior aluminum alloy: harder texture， lighter weight， and best heat dispersion. High brightness: Brightness degradation is less than 1‰ per 1，000 hours.