Insulation Resistance Meter High Voltage Accurate Earth Ground Clamp Tester Kit Item Type: Insulation Resistance Meter Model: ETCR3500 Insulation Resistance Range: 0.005MΩ~5.0TΩ Short Circuit Current: 5mA maximum Range: AC: 0V-700V; Accuracy: ± 5% rdg ± 3v Power Supply: 1 x Rechargeable lithium battery 5200mAh Polarization Index Test: Yes Absorption Ratio Test: Yes Capacitance Test Range: 10nF~25uF: Accuracy ±10%rdg±10nF Current Test Range: 0.01nA~7mA; Accuracy ±5%rdg±0.5nA User Defined Setting Time: 10s-3600s Test Timer: Automatically record the test time, ranging from 0s to 9999s Upload Function: Upload the stored test data to the computer through the USB communication cable Battery Power Display: There is a battery power display, reminding the battery to charge in time when the battery is low Automatic Shutdown Function: Automatic shutdown after power on 15 minutes Protection Level: Close lid IP65, open lid IP40 Working Environment: -20℃~50℃; 80%rh Storage Environment: -25℃~65℃; 80%rh Insulation Resistance: 50MΩ(1000v) (between test line and housing) Suitable Safety: AC 3kV 50Hz 1min (between test circuit and housing)