... , 8cord ringer tone ZAD522 Functions: 10.4inch TFT color LCD display,Aluminum case; Flat screen touch, Video ... etc.Auto light IR grasp at night, high-definition color digital cameras, Remote door unlocking, duration & lock ... 1, maximum capacity is 8,000 copies Parameter for ZAD522 outdoor station ParametersZAD522ZAD522HZAD522CPower18VDC18VDC18VDCPower consumption10W10W10WAssurance temperature-25°C~+ ...