... camera testing3.The CCTV transmitting channel testing4.PTZ controllerFEATURES3.5"TFT-LCD , 960(H)×240(V)resolutionOptical power ... AD/DC Voltage, AC/DC Current, Resistor, Conductivity, Capacitor and Diode test.DC12V power outputAudio inputAdjustable brightness, contrast, ... Security TesterVideo TestSignal modeNTSC/PAL (Auto Adjust)Display3.5 inch TFT-LCD ,960 x 240 resolutionLCD adjustAdjustable ...