A whole house generator system, or automatic standby generator, is a back-up electrical system that starts automatically when your power goes out.

Generally, within 20 seconds of a utility outage, the standby generator kicks on and supplies electricity to essential circuits or even your entire main panel of your home or business. The standby generator is usually powered by natural gas or liquid propane, and it will shut off automatically once the utility power returns.

These generators run a weekly self-test to ensure reliability when you need it, and their operation in the event of a power outage will require no effort.



Cummins Residential Generators


Comfort, security and convenience are things you can depend on with a Cummins Power Generation residential generator … just in case the power goes out. It is easy to forget how much we depend on power. We use it for everyday essentials like heating, cooling, security, refrigeration, lights, cooking and bathing. With power outages occurring more and more frequently, it is good to be prepared. A Cummins Power Generation standby generator can give you peace of mind and the ability to live your busy life, uninterrupted.


Generally, a Cummins Power Generation residential home standby generator set offers many features not found on portable generator sets, such as a more sophisticated control system, a fully weather–protective enclosure, significantly quieter operation, and more capacity so you can power more conveniences. It goes on automatically when you need it and shuts down automatically once main power is restored. It is connected directly to a fuel system and your home’s electrical system so you won’t have to fill a gas tank or manually transfer power from the utility to the home standby unit

Sentry Electric is proud to be a Cummins residential generator dealer.

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Kohler Residential Generators


  Your home is a busy place and a KOHLER® automatic home generator keeps that rhythm going by providing dependable protection during unexpected power outages. Available with 8.5 to 100kW output capabilities, KOHLER® home generators provide worry-free emergency power to support your electrical needs for days, or even weeks. Clean, quiet, automatic backup power - just what your family needs to be safe and comfortable.

Automatic, hands-off operation

In the event of a utility power outage, the transfer switch - working in tandem with the generator - automatically starts the generator to restore power to the home, whether you're home or away.

Fast backup power

KOHLER home standby generators restore power within 10 seconds of an outage.
Sentry Electric is proud to be a Kohler residential generator dealer.

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Generac Residential Generators


  Generac believes that world class products deserve the highest level of technical support, backed up the best possible training. Sentry Electric has on staff Generac Factory Trained technicians who have been trained to know how Generac generators are designed and built. Our training gives us the ability to provide factory startup for all fuel types and to diagnose and troubleshoot your Generac generator with full factory support. We carry a large inventory of parts for Generac air cooled generators.

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Contact Information

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