with three-stage display, a red LED in the tip and a signal tone indicate the presence of AC voltage, for single-pole phase testing, for locating live cables, breaks in cables, defective lamps in chains of lights, etc., LED pocket torch, automatic switching-off, fully insulated, no metallic contact, dimension: 156 x 20 x 20 mm, CAT III, 1000 V, included in delivery: Battery 2 x 1.5 V AAA and instruction manual