... 4. Data analyst, PTZ controller CCTV Tester: 2.8" TFT-LCD Tester with Monitor / PTZ Controller / Video signal generator STE- ... Pan/tilts the P/T unit, zooms in/out the lens, adjusts the focus, aperture and sets and calls the preset ... TesterPROVideo TestSignal modeNTSC/PAL (Auto adapt)Display2.8 inch digital TFT-LCD ,960 x 240 resolutionLCD adjustmentBrightness, Contrast, Saturation adjustableVideo IN ...