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The PowerChek power supply indicator lets you know if your block heater or any other electrical appliance that needs to be powered is working.

PowerChek has two indicator lights, green indicates current is available, and red indicates it is getting to your appliance. Very durable, compact, easy-to-use power supply indicator ideal for everything from automotive and transportation applications to more industrial power verification uses – Use with all 120V circuits.

  • Know that your blocker heater or other equipment has failed when you plug it in.

  • Works on any electrical load by telling you that critical current is flowing through the circuit.

  • Every operating circuit requires both voltage and current to successfully deliver power, PowerChek lets you quickly determine that you have both. Green indicates voltage is present and red confirms that current is flowing.

  • Highly visible from several feet. Know from the comfort of your home or office that your vehicle is ready to go when you are.

  • Pays for itself the first time you avoid a tow call or a missed day of work. Never be stranded again. PowerChek will give you peace of mind.

  • Sectors: Oil / Gas / Energy refineries Military operation facilities Constructions Automotive/transportation Entertainments Health and Safety.

  • Solid quality construction resists cold weather breakage!

  • Size and shape are built to fit conveniently in your hands.

​Will test and continuously monitor the operation of:

  • Sump pumps

  • Generators, compressors

  • Lights, all vehicle block heaters

  • Oil pans

  • Heavy duty equipment

  • Battery warmers

  • Extension cords

  • Heater tapes

  • All electric tools

  • heating blankets

  • Appliances

  • And Many More!

PowerChek provides peace of mind in cold climates. No more guessing if your car will start due to cold weather. Indicator lights will tell you from the warmth of your home whether your block heater or appliance is working.

Simply Plug in the PowerChek between your block heater cord and extension cord, and turn the power check where the light will be visible from your home - the rest of the work is done for you. The green light indicates that there is a current available and the red light indicates that the current is getting to your block heater.


1. You won't have to be late again

2. Feel secure that your family will not be stranded.
3. Save your engine from cold starts.

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