... after charging for 4 hours. Digital Multimeter performs AD/DC Voltage, AC/DC Current, Resistance, Continuity, Capacitance and Diode test, Auto ... IN/OUT1 channel BNC Input & 1 channel OutputVideo Output Mode1.0 Vp-pPTZ controllerCommunicationRS232, RS422 simplex and RS485PTZ ... of the test box.DC12V 1A power outputDC12V power output Output DC12V1A power for cameraAudio input testAudio input testtest ...