SPECIFICATIONS Parking system comes on automatically when reversing Sensor: 2, 3 or 4 detectors available to satisfy full needs of customers Digital distance display of obstacles Voltage: 12-16V DC Current: 10mA-300mA Temperature: -30 to +70 deg. C Detective range: 0.4m to 1.5m Operating frequency: 40kHz FEATURES: Multi-purpose LCD monitor for VCD/DVD/TV/GPS System comes on automatically while reversing ,This optical parking system could be used as car parking sensor. Easy installation, clip the monitor on the original one. Delicate design could match the interior design of car. Multi-layer optical anti-glare blue mirror to make safer driving Blue screen appears with disappearance of video signal Delicate design, stable performance, clear picture and excellent color effect Using imported parts, free from disturbance of high frequency from motor. Using high quality Cable and high brightness backlight to improve clearness and last long Using imported ABS plastic and painting, free from scratching and alcoholic erosion and lasts long