Portable Appliance Tester AC Magnitude Calculation True RMS CAT Safety Rating Not Rated Data Logger Yes Display Type Digital Insulation Resistance Test Voltage 250V DC 500V DC Leakage Current Measured 0.10 to 19.99 mA Maximum Current Measured 19.99 mA Maximum Resistance Measured 19.99 megaohm Minimum Current Measured 0.1 mA Minimum Resistance Measured 2 megaohm Operating Voltage 230V Power Source Battery Tester Type Portable Appliance Tester Testing Functions Insulation Resistance