DescriptionEasy to carry in your shirt pocket and with continuous self-test so you always know it's working, this voltage tester pen, non-contact voltage detector allows you to quickly test for energized circuits in the workplace or at home. The Volt Alert AC non-contact voltage testers is easy to use.Feature- Non-contact detection of standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires - Small and compact pen, design for easy carrying.- Automatically distinguish the Zero Line and Fire line. - Sound and LED alarm, Sound and light instructions. Auto power off - Automatic selection of 2 kinds of sensitivity.Specifications:- Color: As shown - Material: Plastic - Size: 15.6 x 2 x 2cm - Voltage Sensitivity:12V-1000VAC - Frequency: 50-60HZ - Alarm Mode: Sound and light - Flash Light: White - Auto Power Off: Yes - Battery: 2 * 1.5V AAA Batteries (batteries are not included) - Item weight: 50g