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DualCheck™ – Two Tools in One Housing

April 27, 2016

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…

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Featured Product


ST800: 800amp Service Tester
1. Test Integrity of Secondary Service
2. Identify Secondary Cables
3. Identify Feed In and Feed Out at Padmount
4. Identify Energized and De-Energized Cables
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