XHMR-5000 High Voltage Insulation Resistance TesterFeaturesBattery powered, the instrument test insulation testInsulation up to 100000MΩ at 2500V for Model 2550100GΩ at 2500V and 200GΩ at 5000V for Model 2520,200GΩ at 5000V and 400GΩ at 10000V for Model 2503,Suited for heavy duty electrical maintenance and servicing of industrial installations, cable, transformers, generators and switchgear ...