Martindale Electric has always been a pioneer in test equipment. Our firsts include: • Safe Isolation – the definitive voltage indicator and proving unit. • Insulation testing – the first tester for hazardous environments • Test tools – the first low cost fuse finder and the first self-proving noncontact voltage indicator • Socket testers – the first ring main socket tester and the first advanced socket tester as defined by the Health & Safety Executive • Loop testing – the first non-trip, plug-in loop tester, with automatic testing for all PE, PN, PFC & PSC measurements • PAT testing – the smallest and lightest handheld PAT

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