LED Series Parking Sensor (EP-001) 1: Introduction Left, middle, and right barrier identification. Sec 3-color LED alarm, high sensitivity detection. Compatible with indicator light, help drivers know about the obstacles and assist parking. 2: Product Characteristics With four ultrasonic sensors LED distance display Simulation tips of the distance barrier tips "BiBi" alarm sound a warning Concealed installation waterproof, anti-rain and fog, shock 2.0 m long probe • Main microarrays: PIC16F716 Monitor Size: 111í-27 í-26mm Supports 2 or 4 ultrasonic sensor Display with double wave bands and digits Self-inspection function: disply will show which sensor is broken if any one does not work when starting. 3: Technical parameters Rated Voltage: 12V í+ 2V DC Operating voltage: 9 ~ 16V DC Operating Current: 30 ~ 180mA Detection range: 0.2 ~ 2.0m Ultrasonic Frequency: 40KHz Operating Temperature: -40 ~ +85 íµ Alarming Distance í_ 1.5m Display Distance: í_ 2.5m Maxpower ú+ 5W.