The Wiha 27862 255-4 Voltage Test Pen is a reliable tool designed for testing voltage levels from 100 to 500 volts. With its 4.0mm tip and 107mm length, it offers precise and safe voltage detection in various electrical applications. Featuring a length of 200mm, it provides ample reach and flexibility while ensuring user safety. Crafted by Wiha, renowned for quality and precision in tool manufacturing, this voltage test pen is an essential addition to any electrician's toolkit, offering accuracy and peace of mind during electrical work.