Digital wireless two-channel video transmission system for port operation vehicles, , harvesters, and vehicle equipment. 7Digital wireless transmission video signal. Strong anti-interference. High definition. Wireless open video transmission distance up to 100 meters. Wiring-free installation, simple and convenient. Display working voltage DC9-24V. The display has a -in 2.4GHz digital wireless video signal receiver, anti-load-dump voltage design, and protection circuit. The camera has a -in 2.4GHz digital wireless video signal transmitter. Camera waterproof IP67, with infrared night vision function, working voltage DC9-36V. Products are used in public transportation buses, long-distance passenger buses, school buses, agricultural tractors, heavy freight trucks, rail transit vehicles, municipal road machinery and equipment vehicles, airport equipment vehicles, port and terminal tower crane machinery and stackers, security vehicles, and fire protection vehicles, factory supermarket forklifts, mining machinery and equipment vehicles, etc. 2.4G digital wireless camera Imaging device 1 or 4 CCD camera Standard NTSC: 648x488 pixels PAL: 648x488 pixels Resolution 420 TVL Lens: 2.5mm Minimum illumination 0Lux (LED ON) Infrared light 18pcs Night vision distance 15 meters Waterproof grade IP67 Angle 120 degree Input voltage 12 or 24 or 36V DC Working temperature -20 Celsius - and 70 Celsius Video decompression MPEG 4 Radio 18 dBm Transmission rate 12 Mbps Fitment: Universal Colour: as shown Material: ABS Package Contents: 1 x Car Monitor 1 x Camera 2 x Antennas 2 x Cable 1 x Mount Bracket 1 x Lighter 1 x Controler Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.