LED Display Car Parking Sensors 4 Radars Automobile Jalousie Park Master Car detector LED Display Car Parking Sensor Warm Tips1. Due To Different Displays, Screens, Or Personal Feelings, The Color Maybe Little Different From Real Product. If You Mind, Please Do Not Order.2. If You Have Any Problem When You Received The Sensor, Such As Sensor Not Working, Can Not Install... Please Contact Us At First, We Will Help You Slove The Problem, Do Not Open Dispute Or Give Negative Feedback.3. The LED display gives Bi-Bi-sound when alarming. Features*4 sensor system, double CPU and advanced chipset for enhanced coverage and detection (0-2.5m).*With digital colored LED display (number & light).*Help to prevent dangerous and costly collisions.*Help to provide increased safety for paengers, pedestrians and family members who happen to be around the moving vehicle.*Detect small children and low walls as well.*Anti-freeze and rain proof.*Easy to install.*A saw drill head included. Specifications*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 FAQ1.No obstacle, have BIBI sound.Answer: Red connect to turn lights, black connect the whole car lights, do not connect the negative.2. No obstacle, display other number.(1) The display shows different numbers, such as E03-E07,Answerbecause the Electric current is not stable, buy a regulator specifically connected to the lights, do not shunt with the other(2) display same numberAnswer Sensors should have 50 cm high, with the universal meter amountsensors should be level, otherwise it will detect the ground.Package List1pc * Main Control Box1pc* LED Display Indicator4pc * Parking Sensors with 2.5M Line1pc * Hole Saw1pc * Power Cable2pc * Double Side Sticker