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Compact and easy to use Power Supply Indicator - Use with all 120V Circuits

The ACR PowerChek power supply indicator lets you know if your block heater, or any other electrical appliance that needs to be powered in cold weather, is working. PowerChek has two indicator lights, green indicates current is available and red indicates it's getting to your appliance.

  • Know that your blocker heater has failed when you plug it in - not when your vehicle fails to start
  • Works on any electrical load by telling you that critical current is flowing through the circuit
  • Every operating circuit requires both voltage and current in order 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
  • Guaranteed to work every time and allows you to enjoy peace of mind

Powerchek also makes an affordable yet valuable gift idea for anyone who parks outside in winter. Family, friends, co-workers, clients. Each will remember your generosity every time they plug in their vehicle and thank you for your thoughtfulness.


PowerChek Power Supply Indicator.

Available in North America 120V Only.


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