The Triplett Sniff-It™ is a rugged AC Voltage detector with a built-in flashlight. It offers high sensitivity from 30 to 600 Volts AC . The rubberized overmolded housing provides impact and drop resistance in a sleek ergonomic design, and the simple on/off button allows for maximum battery life. With a CAT III & CAT IV certification it provides protection not only the product, but for the user as well.