Features: Mini digital current and voltage tester signal indicator, it can be used to measure AC current and voltage simultaneously. Wide measuring range for AC0-100A and 60-500V. Easy-to-read, high-brightness 3-digit LED display provides a clear reading. 2.2 * 2.2 inch square panel with a cylindrical main body. It can be used as a signal indication, alarm signal, and accident signal in electricity, telecommunications, machine tools, ships, textiles, printing, and other machinery mining industries. Specifications: Color: blue/green/red/white/yellow (optional) Material: Electrical components Voltage: AC60-500V Current: AC0-100A Item size: 55*31*31mm/2.17*1.22*1.22in Item weight: 39g/1.38oz Package weight: 44g / 1.57oz Package size: 7 * 3.5 * 3.5 cm / 2.76 * 1.38 * 1.38 inches Packing List: 1 * digital counter