MODEL NO HVAT-01 > Screen Size : (TFT LCD) 4 inch > Connecting System : 1 CAMERAS 4 MONITOR > VVoice Transmission : 2 WAY COMMUNICATION > Max Wire Length From Camera : 30m , using 0.65mm Cable > Power Source : AC 110V~240V and DC13.5±0.5V > Power Consumption : Max 12.5W standby 0.5W > Picture Element :420 TV lines > Chime : ding dong chime > Working Temperature : 0oC~50oC > Installation : wall-mounted > Size L* W * H ) : 219mm * 192mm * 78mm > N.W. : 1.8 Kg > Available Camera : HVAD-02,HVAD-03