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2-in-1 Electrical Tester from Commercial Electric

By: Jodi Marks

Commercial Electric DualCheck 2-in-1 Voltage Tester

This tester combines 2 of the most popular testers used by electricians, inspectors and homeowners into a single unit. First it’s a non-contact voltage tester that detects 50-1000-Volt AC, or Alternating Current. Plus it also tests GFCI Outlets to determine whether the wiring is correct and show exactly what the wiring error is if one exists. It’s available at

Watch the video above for more details.

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2-in-1 Electrical Tester from Commercial Electric