The pocket-sized voltage detectorThe next generation VoltAlertTM AC non-contact voltage testers from Fluke are easy to use � just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know there�s voltage present. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home.Fluke 1AC-E1-IIRound TipCAT IV 1000 V for added protection200 V to 1000 V AC