Specifications　RangeUT502AInsulation resistance (Ω)Test voltages500V/1000V/2500V0%~10%500V0MΩ~99.9MΩ±(3%+5)100MΩ~5GΩ±(5%+5)1000V0MΩ~99.9MΩ±(3%+5)100MΩ~5GΩ±(5%+5)2500V0MΩ~99.9MΩ±(3%+5)100MΩ~9.9GΩ±(5%+5)10GΩ~20GΩ±(10%+5)Load current50V (R=50kΩ) 1mA0%~10% 100V (R=100kΩ) 1mA0%~10% 250V (R=250kΩ) 1mA0%~10% 500V (R=500kΩ) 1mA0%~10% 1000V (R=1MΩ) 1mA0%~10% 2500V (R=1MΩ) 1mA0%~10% Short-circuit current　<2mALow resistance (Ω)0.01Ω~200Ω (about 5.0V/>200mA）±(2%+3)AC voltage (V)30V~600V±(2%+3)FeaturesDisplay count　2000DAR60s/15s and 60s/30s√PI　√Auto range/Low battery indication　√LCD backlight/Light alarm　√Buzzer alarm/High voltage indication　√Over load indication/Auto discharge　√Test voltage secondary display　√10MΩ internal resistance test　√