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>8-sensors system， complete front and rear protection. <br>2 control units designed for luxury vehicles. <br>Automatic radio mute function while reversing. <br>Intelligent detection， compatible with spare tire or metal bar(front !#!amp!*! rear). <br>Anti-false alert technology. <br>Can be used as 6-sensor system. <br>Detachable sensors with waterproof wire connectors. <br>Self-test function. <br>All weather design.(-40°~ +85°） <br><br><strong>Specifications:</strong> <br>Brand: Steelmate <br>Model: PTS800EX <br>Input voltage: 12V <br>Buzzer SPL: 70-90dB <br>Detection range: front: 0.3m - 1m / rear: 0.3m - 1.5m <br>Package size: 39.5 * 24 * 7cm / 15.6 * 9.5 * 2.8in ? <br>Package weight: 1466g / 51.7oz <br><br><strong>Package List:</strong> <br>2 * ECU(front !#!amp!*! rear) <br>2 * Buzzers <br>8 * Sensors <br>4 * Sensor Wire <br>1 * Set of Installation Accessory <br>1 * Manual