This Faithfull Voltage Detector is a handy instrument that uses a safe, non-contact method to detect AC voltage in outlets, lighting fixtures, circuit breakers, wires and cables and can be used to find circuit breaks in a wire. A voltage test is easy to carry out by simply holding the detector by its body and placing the white end cap near or onto a cable or fitting believed to be carrying electricity. The detector tip will light up RED if a voltage is present. The tester can be used to detect voltage from 50 to 1,000 VAC. The tester is a convenient pen size with a fixing clip and easily fits into pockets ready for use. Features: LED detects the presence of AC current. Locate breaks in power cables and wires. Non contact testing for complete safety. Convenient pen size with a pocket clip. 2 x 1.5V AAA Alkaline Batteries included. Specification: Voltage Detection: 50V-1,000V AC Frequency: 50-500Hz Measurement: CAT II, 1000V Category: CAT III, 600V Warning: Always test on a known live circuit before use. This detector is not designed to carry out contact tests on live supplies. Any other form of test should be carried out by a qualified electrician.