A Brief History of Thermalarm

In 1970, Al Varrieur sat at his kitchen table wondering how to protect his family's small commercial greenhouse operation from the ravages of New Hampshire's frosty seasons. A retired executive and aeronautical engineer, Al used his skills to develop a temperature-alarm instrument that was reliable, simple to operate and inexpensive to manufacture. His first Thermalarm filled a need in the market that no other design had.

Horticultural industries were immediately interested and soon, the success of Thermalarm sparked the interest of other agricultural industries in need of low cost, reliable temperature protection. As a result, Al added poultry and other animal confinement industries to his growing list of customers. Thermalarm quickly became a success throughout the United States and Canada.

In 1977, the company incorporated under the laws of the State of New Hampshire as Thermalarm Products, Inc. Although Thermalarm has experienced several design changes and improvements over the years the basic operating principle remains the same as when Al built his first instrument. We are still a family owned and operated business and our goal is to meet the demands of major commercial manufacturing concerns while we maintain the ability to deal with the needs of the smaller companies and individuals who use our products.

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