7 Inch TFT Touch Screen with Picture Memory Video Door Phone System 4 Wires

Features. 7" Tempered glass monitor (acrylic alloy panel for option) Appearance: Black/white for option Button hands-free operation/touch button operation Surface mounted Function: talking/unlocking/monitoring/picture memory and video recording for option                                       Connect 2 outdoorstations and 4 indoor monitors at Max. Power input: 12-15V Working temperature: -10ºC~50ºC Dimension: 199×127×21mm   Display7" color TFT LCD ScreenMonitoring Timer30 secondsTalk Timer120 secondsRingtone Timer30 seconds ringing, 90 seconds waitingPower consumption