3.5 "Multifunction CCTV tester with Multimeter and optical meter 1. CE, FCC, ROHS certification ... inch TFT-LCD 3. PTZ 3.5" TFT-LCD CCTV Tester with multimeter and PTZ controllerApplication:1.CCTV system installation and ... Multimeter, performs AD/DC Voltage, AC/DC Current, Resistor, Conductivity, Capacitor and Diode test.DC12V power outputAudio inputAdjustable brightness, contrast, color ...