Klein Tools NCVT-5A Non-Contact Voltage Tester Pen

AC voltage in security, entertainment, communications, environmental control and irrigation systems. Dual-range testing: select 12 to 1000V AC which is perfect for low voltage systems such as doorbells, environmental control or irrigation systems, or select 70 to 1000V AC. Perfect for detecting systems such as electrical mains supply. Bright integrated laser pointer for identifying objects of interest at distance on the jobsite. Built to withstand a 9.9-foot / 3-meter drop. CAT IV 1000V safety rating.