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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 TV 410N quickly and safely determines phase presence and sequence in three-phase systems using five glow lamps. Its robust ABS housing and comprehensive connection cable set ensure durable, reliable, and safe operation.
