1 3.5" TFT-LCD screen 2 PTZ control 3 PAL/NTSC multi-system 4 set and call preset position 5 PTZ date ... video tester PRODUCTION FEATURES:3.5" TFT-LCD screen, English menu, display signal system Screen Brightness / Contrast / Color Saturation are adjustableTest video ... /DC Current, Resistance, Continuity, Capacitance and Diode test, Auto / Manual Range, Data hold, Relative measuring.Size: 175mm x 94mm x ...