The TOPEX Secure Voltage Tester 200mm (100V to 500V) - Yellow is a versatile and dependable tool designed for precise voltage detection. Perfect for professionals and DIY users, this tester identifies live circuits ranging from 100V to 500V AC with exceptional accuracy. Its robust 200mm design enhances reach and usability, while the bright yellow color ensures easy identification in toolkits and workspaces. Built for reliability and safety, this tester is a must-have for electrical troubleshooting tasks.