DualCheck 2-in-1 Tester, 50-1000V AC Non-Contact Voltage Detector, GFCI Outlet Circuit Analyzer Engineered to specifications required by professional electricians the innovative 2-in-1 DualCheck Tester from Sperry Instruments saves you time and money, while providing quality you can trust. This patent-pending dual-ended tester incorporates 2 of the most popular testers used by electricians, inspectors, technicians and…
Read More >>Leaders in Electrical Safety
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• National Technology Transfer
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