CCTV Tester: 2.8"TFT-LCD, LCD Brightness/Contrast/Color Saturation adjustable;PTZ controller,PTZ ... testing 3) The CCTV transmitting channel testing 4) PTZ controller 2.8"TFT-LCD , 960H×240Vresolution Adjustable brightness, contrast, color of LCD ... Security TesterVideo TestSignal modeNTSC/PAL (Auto Adjust)Display2.8 inch TFT-LCD ,960 x 240 resolutionLCD adjustAdjustable brightness, contrast, color of ...