Features:_x000D_1. 4 sensor systems, dual CPU and advanced chipset, can achieve better coverage and detection 0.2-2.5m._x000D_2. With digital colored LED display number and light._x000D_3. Help avoid dangerous and costly collisions._x000D_4. Help to provide increased safety for passengers, pedestrians and family members who happen to be around the moving vehicle. Detect children and low walls as well._x000D_5. Antifreeze and rainproof. Easy to install. A saw drill head included._x000D_Notice:_x000D_1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow slight deviation due to manual measurement._x000D_Specification:_x000D_Type: Car LED Parking Sensor_x000D_Material: ABS_x000D_Rated voltage: 12V_x000D_Working voltage: 9-16V_x000D_Rated current: 20-200mA_x000D_Detection distance: 0.2-2.5m_x000D_Acoustic frequency: 40KHz_x000D_Working temperature: -30-80degC_x000D_Display working temperature: -20-60degC_x000D_Power: Max 0.5W_x000D_Warning Distance: 0 - 2.0m_x000D_Pipe Diameter: 22mm_x000D_Frequency:_x000D_- 1.6-2.0 m: 0.5HZ slow_x000D_- 1.1-1.5 m: 1 HZ slow_x000D_- 0.6-1.0m:3 HZ rapid_x000D_- 0-0.4 m: sirensPackage List:_x000D_1 x Main Control Box_x000D_1 x LED Display Indicator_x000D_4 x Parking Sensors with 2.5M Line_x000D_1 x Power Cable_x000D_1 x Hole Saw_x000D_2 x Double Side Sticker_x000D_1 x User manual