Insulation resistance meter measures insulation resistance on wires, cables, transformers, and electrical motors
Analog meter does not require external power source
Test voltage produced by hand cranked constant voltage generator
Measures insulation resistance from 0 to 100 Megaohms with 1,000V DC test voltage and a low resistance range that measures from 0 to 200 ohms with a 300mV DC test voltage
Guard terminal prevents surface leakage from affecting readings