Receptacle Tester with GFCI Alert Type Digital Display CAT Safety Rating CAT II 300V Display Screen Type LCD Display Type Digital Features Displays Peak Line Voltage and Frequency For Voltage Range 90 to 240V AC Frequency Rating 45 to 65 Hz Ground Impedance 0.00 to 1 ohm Includes AC Test Cord Load Current 12 A 15 A 20 A Maximum Tension Measurement Not Applicable Minimum Tension Measurement Not Applicable NEMA Plug Configuration Not Applicable Tester Type AC Circuit Analyzer