The Fluke VoltAlert non-contact voltage testers are easy to use—simply touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, voltage is present. Electricians, maintenance personnel, service technicians, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home .

The Fluke 1AC-II continually tests its battery and circuit integrity with a periodic double flash visual indication using Fluke's Voltbeat technology. When the tip blinks red, you know it's working properly, providing a continual visual indication that the tester is on and functioning. The beeper can be disabled for use in quiet environments, offering audible/silent mode for added convenience .

Two models are available: the Fluke 1AC-A1-II has a voltage detection range of 90 to 1000V AC for standard applications, while the Fluke 1LAC-A-II low voltage detector has a range of 20 to 90V AC for control circuits and low-voltage applications. Both are rated CAT IV 1000V for overvoltage protection, the highest rating of their kind .

The tester senses the steady-state electrostatic field produced by AC voltage through insulation without requiring contact to the bare conductor. The flat detector tip design allows easy access to outlets and terminals. The pocket-sized design runs on two included AAA alkaline batteries with typical battery life exceeding one year. The product is CE and CSA approved and carries a two-year warranty .