Gardner Bender Sperry Dual Check GFI Tester Dual Check dual-ended tester combines two common testers into one. Features a GFCI ground fault current interrupter outlet tester on one end and a 50-1000V AC non-contact voltage tester on the other. Provides an accurate analysis of any 120 volt receptacle. Non-contact voltage tester detects 50-1000V AC and features a bright 360 degree LED light emitting diode visual indicator along with an audible beeping indicator of the presence of voltage. GFCI outlet tester features a clear and easy to understand single LED readout indicating correct wiring or open ground, open neutral, HOT/GND reverse, HOT/NEU reverse, and open hot wiring errors. Designed for the jobsite with Hi-impact ABS housing with 250 pound crush rating and withstands drops of up to 10 feet. Over molded grips ensure user comfort during repeated or prolonged use. Compact design takes up less space. Lifetime warranty. Voltage 120V, UL Listed Yes, Frequency Range 60 Hz, Pkg Qty 1, Package Type Card WARNING This product can expose you to chemicals including DEHP which is known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov