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Testboy is a leading manufacturer of electrical testing and measurement equipment for electricians, installers and maintenance professionals. Its portfolio includes voltage testers, multimeters, cable locators, socket testers and environmental measuring instruments designed to deliver reliable and accurate results in industrial, commercial and residential applications. Professionals worldwide trust Testboy products for safety, durability and ease of use.
The Testboy 15 is a precise and user-friendly magnetic field tester ideal for quickly checking electromagnetic switches, valves, and more. Its LED tip lights up when a magnetic field is present—whether permanent, DC, or AC—allowing for efficient testing without dismantling equipment or halting operation.
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