... and maintenance CCTV TesterPRO 3.5TFT-LCD Monitor DC12V 1A power output for camera ... modeNTSC/PAL (Auto adapt)Display3.5 inch digital TFT-LCD ,960 x 240 resolutionLCD adjustmentBrightness, ... controllerCommunicationRS232, RS422 simplex and RS485PTZ ProtocolCompatible with more than 20 protocols such as ... , 660mA, 10A Manual rangingResistor660, 6.6K, 66K, 660K, 6.6M, 66MΩ auto/manual rangeContinuityBuilt ...