Features:, 2, 4 GHz 4CH TX module, 1, 0 W output (Export Only), Video scramble, Transmits AV up to 1000M Light-of-sight), ID addressing, 5dBi high gain antenna, Alarm trigger input for remote sensor/detector (Build-in alarm buzzer), 4 Channel selectable by switch, Connect any camera or video signal to transmitter, To extend the range via others high gain antenna, Housed in a metal case, DC 12V / 750mA output, Technical Data:, Frequency Channels - 2352 ~ 2524 MHz, In –band or outband each 4-CH, TX Power - 1, 0W, RF Impedance - 50 ? Typical, Video Input/ Output - 1, 0 Vp-p Composite @ 75?, Audio Input/ Output - 2, 0 Vp-p Max, (600?), Alarm - Level Detection (5V TTL), Power Consumption - 350mA Typical , Start-up current 650mA ( DC12V Input), Operation Temp, - 10C ~ 50C, Storage Temp, -30C ~ 85C, Dimensions - 110 x 88 x 30mm (without Antenna), SKU: SUPN096