The Testo 750-3 Voltage Tester is the most advanced model in Testo's voltage tester lineup, designed for high-performance and reliable electrical testing. Featuring unique fibre-optic technology, single pole voltage testing, a torch for illumination, an all-round LED display, and an LC display showing the current reading, it ensures clear and accurate voltage indication from any position. Key Features All-round LED Display: Provides clear and visible voltage indication from any viewing angle. Fibre-optic Technology: Ensures optimal clarity and visibility of voltage readings. Single Pole Voltage Testing: Allows for quick determination of live conductors. LC Display