Amprobe PY-1A Voltage Tester Automatic AC/DC voltage tester for residential or commercial use; tests receptacles, lights and appliances Compact, pocket-sized and easy to use. High quality construction for years of service. Bright neon lights indicates AC and DC voltages even in well-lit rooms Built-in test leads holder; spaced to fit a standard US/Canada outlet for easy one-handed testing CE and CSA certified for Category III 600V.