2-piece voltage tester kit. Visual and audible indicators. Tests for open ground, open neutral, open hot, hot/ground reversed, hot/neutral reversed, correct wiring, GFCI (ground fault circuit interrupter) test function. 1 year warranty. No. GTK-2: Type: Non-Contact, AC Voltage: 50 to 600VAC, Powered By: 1 AAA Battery, Lead Length: N/A, UL Listed: Yes, ETL Listed: No, Pkg Qty: 1, Package Type: Card