OTC 1000V CAT III Hybrid Multimeter with Insulation Test. A full function Multimeter with an insulation test feature is used to test for voltage leaks through insulation found on Hybrid and Electric Vehicles. Features: Hybrid Insulation Resistance Test, True RMS, Auto Ranging, Diode Test, Continuity Buzzer, Data Hold, Data Logging, Display Backlight, Min/Max Mode, Sleep Mode, and Low Battery Display. Kit Includes heavy duty Class III test leads with alligator clips, short lead, K type temperature adapter and manual.