The voltage tester allows for non-contact detection of alternating voltages in the range of 12 to 1000 volts. The voltage measurement is carried out contactlessly and is indicated via a three-stage LED display as well as acoustically. An integrated LED flashlight makes it easier to use even in poor lighting conditions. The device is fully insulated, eliminating the need for metallic contact during testing. A power button with an integrated battery status indicator provides information about the current energy state. The automatic shut-off function ensures extended battery life. The voltage tester is suitable for phase testing, locating live wires, identifying breaks in cables, and detecting faulty bulbs in light strings. The device complies with measurement category CAT III up to 1000 volts and is powered by two AAA batteries.