... one camera testing The CCTV transmitting channel test PTZ controller CCTV testerApplication:1.CCTV system installation and maintenance2. ... AC/DC Current, Resistor, Conductivity, Capacitor and Diode test.DC12V power outputAudio inputAdjustable brightness, contrast, color of LCDVideo Level ... ranging, 0.1mV resolutionAC/DC Current6.6mA, 66mA, 660mA, 10A Manual rangingResistor660, 6.6K, 66K, 660K, 6.6M, 66M ...