Auto Parking Aid System -Digital sensor design, -Water-resistant service connectors, Auto Parking Aid SystemFeatures:-Digital sensor design,-Water-resistant service connectors,-Color Display ... beep frequency,-Rated Voltage: DC12V,-Operating Temperature: -40°C to +85°C,-Max Detect Range: 1.5m/Custom-made,-Transmitting Frequency ... :5 status High quality and reasonable price auto parking aid system