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 1000 VAC. It is a convenient pen size with a fixing clip that easily fits into pockets ready for use. The LED detects the presence of AC current, and it is suitable for locating breaks in power cables and wires. It is a non-contact testing device for complete safety. The tester includes 2 x 1.5v AAA alkaline batteries. It has a voltage detection range of 50V-1000VAC and a frequency range of 50-500Hz. It is a CAT II, 1000V measurement device and a CAT III, 600V category device.