● Microprocessor-controlled. ● Four insulation test voltages. ● Insulation resistance; auto ranging on all ranges. ● Bargraph indicates test voltage; rise and decay can be observed during tests. ● Visual and audible warning if external voltage is present. ● EnerSave™ feature to extend battery life. ● 2 Lines × 16 characters large LCD. ● Low battery consumption. ● Low battery indicator. ● Overload protection. ● Auto-off. ● Show test time duration (up to 99.9s) for easy comparison. ● EEPROM calibration. ● Built-in carry case and test leads in separate pouch.