The T2272A Audio & Visual from C.K Tools is the new and improved non contact voltage detector; an essential in any electricians pocket. This non-contact voltage detector is ideal for contactless AC voltage tests, earthing/ground connection checks, proper connection check, broken wire detection etc. With an installation category CAT IV 1000v this product offers complete protection against transient voltage spikes for the safe testing of fixed installations, and features visual and audible indicators, where the entry level model features only visual. Main Features: Bright red LED illumination on detection of AC voltage Audible indication of AC voltage detected Double insulated to ensure safe use near live circuitry Ergonomic dual component body constructed with handy pocket clip On/Off button for longer battery life High sensitivity tester, offering an extensive non-contact voltage detection range of 70-1000V AC This product requires 2 x 1.5V AAA Batt