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