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How to Check Circuits with the Dual Check 2-in-1 Tester

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Sarah Burnside
Posted on 23rd February 2023

There’s nothing more frustrating to the average homeowner than bad wiring. Flickering lights, hot switch plates, and circuits that constantly trip are all signs of faulty wiring in homes or businesses. In most cases, there is nothing the average individual can do to deal with these wiring issues. For electricians, diagnosing the exact issue isn’t always quick or easy either. The signs might jump out to an electrician faster but figuring out the specific cause is necessary to fix the problem.

For faster diagnosis and testing of outlets, the Dual Check 2-in-1 Tester is a great tool. You can use this on new job sites to ensure new wiring was done right the first time. You can also use it if you’re called to a home or office to check on suspect wiring. Whether you’re an electrician or a home inspector, the Dual Check is a must-have tool.

The Tool that does it All

The Dual Check 2-in-1 Tester is a dual-ended AC non-contact voltage tester, and a GFCI circuit tester in one tool. These are vital functions for any electrician. Regardless of whether you’re installing new wiring or fixing current wire problems, you need these tools. Now, rather than carrying two separate ones around you can have both in one piece. The design may be patent pending, but the Dual Check is quickly becoming a go-to tool for electricians, inspectors, and technicians.

Dual Check 2-in-1 Testers have an AC range of 50 to 1,000 volts and a bright, 360-degree viewable LED indicator with lights. No matter how you’re holding the voltage tester, you’ll see the indicator light with ease. There’s no mistaking the results! Best of all, it’s non-contact so you aren’t at risk while you’re working. It may seem trivial, but electrical shocks do pose a threat to even the most experienced electricians.

EC Mag cites information from the last decade of the 90s that showed just how often electricians are shocked on the jobsite. At the time, electrocutions killed an average of 143 construction workers annually. From 1992 to 2003, electrical workers suffered the highest rate of electrocutions per year. According to the BLS, there were 2,726 nonfatal electrical shocks between 1992 and 2002. In this case, a non-contact voltage tester is a key tool.

But this isn’t just one tool, is it? The 2-in-1 Tester has a circuit tester that provides you with easy results. Just plug it in and a set of single LEDs provide you with an immediate indication of the problem. The Dual Check gives you a quick light that indicates the following issues:

    • Open Neutral
    • Open Ground
    • Hot/Neutral Reversed
    • Hot/Ground Reversed
    • Correct Wiring

Wiring Matters

As an electrician, wiring a new job or repairing bad wiring is a key role. You have the chance to help people avoid death and personal loss with proper wiring. The National Institutes of Health report 1,000 Americans die each year from electrical shock. Take just reverse hot and neutral wires. The Minneapolis Star Tribune notes reversed polarity is very common. It is particularly common in homes where individuals have done some DIY electrical work. The resulting reversal exposes individuals to shocks from a variety of scenarios, even changing a simple light bulb if the metal socket is exposed on the bulb.

The Dual Check 2-in-1 Tester isn’t just for electricians. While electricians do a lot of the heavy lifting, there are others that could use this tool to help avoid electrical shock issues. Home inspectors are tasked with judging the condition of a home during a sale. One of the key factors covered is electrical wiring. Inspectors could use the 2-in-1 to quickly assess any issues. With 5 million homes sold each year, there are a lot of inspectors out there. And those inspectors are looking at the wiring in a lot of homes.

Make Life Easier

At the end of the day, doing the job right is more important than doing it quickly. The Dual Check 2-in-1 Tester can help you get work done faster, while still getting it done right!


Buy the Dual Check 2-in-1 Tester from Rack-A-Tiers