Sensitive voltage detection from range 80-1000V AC (50-60Hz) Suitable for testing AC voltage in outlets, live wire, cables, cords, circuit breakers, lighting fixtures, switches...etc. Fitted with visible LED light voltage indicator in tip CAT Ⅲ 1000V safety rating In accordance with EN 61010-1 and EN 61010-2-030, CE compliant Powered by 2 x AAA batteries (not included)