Insulation Resistance Tester LCD Display High Accuracy Multifunctional Digital Megohm Meter 5KV 100‑240V US Plug Item Type: Digital Resistance Tester Material: ABS Mode: ETCR3520 Insulation Resistance Range: 0.005M Ω to 10.0T Ω Short Circuit Current: Greater than or equal to 7mA DC: 0V-800V; Accuracy: ± 5% rdg ± 3v AC: 0V-700V; Accuracy: ± 5% rdg ± 3v Working Power Supply: Rechargeable lithium battery 6200mAh x 1 (shipped with built in battery) Polarization Index Test: Yes Absorption Ratio Test: Yes AC DC: 0V-1000V; Accuracy ± 5% rdg ± 3V Capacitance Testing Range: 10nF-200uF, accuracy ± 10% rdg ± 10nF Real Time Current Display Test Current Value, Current Display Range: 0.001nA-7.5mA Custom Setting Time: 10s to 3600s Test Timer: Automatically record test time, timing range 0s to 9999s Upload Function: Upload the stored test data to the computer through a USB communication cable. Automatic Shutdown Function: Automatically shut down after 15 minutes of power on Protection Level: Close the cover IP65, open the cover IP40 Working Environment: -20 ℃ to 50 ℃; 80% rh Storage Environment: -25 ℃ to 65 ℃; 80% rh Insulation Resistance: 50M Ω (1000v) (between the test line and the shell) Suitable Safety: AC 3kV 50Hz 1min (between test circuit and enclosure)