Parking assist system is an ultrasonic distance monitoring system. It electronically detects the area in front of and at rear of your vehicle while parking￡? and alerts you with audible warnings. It assists the driver when parking and in maneuvering situation. <br> <br> <strong>Features:</strong> <br> Front and rear digital sensor system with audible warning. <br> Self-test function￡? damaged sensor indication. <br> Intelligent detection￡? super for car with tow-bars￡? spare-tires or other protrusion. <br> Anti-interference and anti-false alert technology. <br> Perfect performance under heavy rain￡? windy and dusty environments. <br> Detachable sensors with waterproof wire connectors. <br> Organized wires in one loom for easy installation. <br> Suitable for plastic and metal bumpers. <br> All weather design.(-40??~ +85??￡? <br> <br> <strong>Specifications:</strong> <br> Brand: Steelmate <br> Model: PD800 <br> Input voltage: 9-16V <br> Operating current: !#!lt!*!200mA <br> Beep volume: 80dB <br> Detection range: front: 0.1-1.0m / rear: 0.1 - 1.5m <br> Package size: 31.5 * 23 * 8cm / 12.4 * 9 * 3.2in <br> Package weight: 1174g / 41.4oz <br> <br> <strong>Package List:</strong> <br> 1 * ECU <br> 2 * Buzzers <br> 8 * Sensors <br> 1 * Set of Installation Accessory <br> 1 * User Manual