Million mega-ohm meters from mangal instrumentation are useful for testing insulation resistance with highly stable dc test voltage. The salient features of the million mega-ohm meters is short-circuit damage proof and stable infinity indication even in humid weather. The company supplies these million mega-ohm meters in a wide range of models with 1meg to 10 mega-ohms at 500 v, 1meg ohm at 1000 v, etc.
