Single-Head electric Tester : A Small and hand tool designs for detecting electric in electrical circuits with ease electric Detection Pen : This simple yet effective device features a single pointed head that allows for accurate testing of live cord without direct Pocket-Sized electric Pen : This easy carry tester is ideal for electricians and enthusiasts , making it easy to carry and use for quick electric checking Electricity Testing Tool : The single-head design provide convenience and Precisions when identifying energizes circuits or faulty wiring not electric Tester : Equipped with a single probes , this tester alerts users to the existence of electric through visual or hearable sign, Manufacturer: Watreketal