Features:1. 4 sensor systems, dual CPU and advanced chipset, can achieve better coverage and detection (0.2-2.5m).2. With digital colored LED display (number and light).3. Help avoid dangerous and costly collisions.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.5. Antifreeze and rainproof. Easy to install. A saw drill head included.Notice: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.Specification:Type: Car LED Parking SensorMaterial: ABSRated voltage: 12VWorking voltage: 9-16VRated current: 20-200mADetection distance: 0.2-2.5mAcoustic frequency: 40KHzWorking temperature: -30-80degCDisplay working temperature: -20-60degCPower: Max 0.5WWarning Distance: 0 - 2.0mPipe Diameter: 22mmFrequency:- 1.6-2.0 m: 0.5HZ (slow)- 1.1-1.5 m: 1 HZ (slow)- 0.6-1.0m:3 HZ (rapid)- 0-0.4 m: sirens