The Deli DL8002 Voltage Tester is an essential tool for both professionals and DIY enthusiasts requiring accurate electrical testing. Designed to detect AC voltages ranging from 100V to 500V, this tester features a robust 190mm shank made from high-quality 45 steel. The shank is heat-treated and nickel-plated to provide superior resistance against rust and corrosion, ensuring long-lasting durability. Its ergonomic, insulated plastic handle offers a comfortable and secure grip, while the easy plug-in head design allows for convenient testing even in narrow or hard-to-reach sockets.