The Non Contact Voltage Tester Pen is a reliable electrical live wire detector suitable for various electrical tasks. With a voltage range of 12/48-1000V AC, this mains volt stick is easy to use and features an alarm method of analog only. The compact dimensions of 165x25x28mm make it convenient to handle, and the comfort level is high. Powered by a 1.5V AAA battery, this voltage indicator pen also has an infrared pointing light for added visibility. Ideal for DIY electrical work, this tester pen is a must-have for any professional or homeowner looking to ensure safety during electrical inspections.Red lndicator Light (special function)