Portable Appliance Tester, CAT Safety Rating CAT II 300V, Display Type Digital, Insulation Resistance Test Voltage 250V DC, 500V DC, Leakage Current Measured 0 to 19.99 mA, Maximum AC Voltage Measured 120 V, Maximum Current Measured 200 mA, Maximum Resistance Measured 19.99 ohm, Minimum Current Measured 10 mA, Operating Voltage 110/230V, Power Source 120V AC, 60 Hz, Tester Type Portable Appliance Tester, Testing Functions Ground Bond Integrity, Ground Leakage, Insulation Resistance