Receptacle Tester with GFCI, Alert Type Not Applicable, CAT Safety Rating CAT I 120V, Display Screen Type No Display, Display Type No Display, Features Ideal for Measuring Leakage Level of GFCI Breakers, GFCI Portables and GFCI Receptacles, For Voltage Range 110 to 130V AC, Frequency Rating 60 Hz, Load Current 20A, Maximum Tension Measurement Not Applicable, Minimum Tension Measurement Not Applicable, NEMA Plug Configuration 5-15P, Tester Type Receptacle Wiring and GFCI Tester