... tester ,PTZ tester, CCTV Camera tester Product Characteristic1. 3.5-inch high definition digital TFT-LCD screen 2. Brightness, ... protection)AC/DC Voltage0-660V automatic/manual measure, the mini resolution reaches to 0.1mVAC/DC Current660uA , 6. ... ΩCapacitance test6.6nf~66000uF, 1pf mini resolutionDiode test0~2V diode voltage,1mV mini resolutionDifference value measurementDisplay the difference value ...