The dial tstat in a hanging shop heater failed closed and ran full blast for days before it was noticed, insulation melted off the wires. After replacing the dial tstat, this tstat switch was a necessary addition to give me the piece of mind to turn the heater back on again. Great product at a fantastic price.

I am very pleased with the quality and function of these components. I would recommend Senasys to a friend.

William F.
I could not be happier with how well this switch works.

Brian K.
An easy, inexpensive fix to what could have been a big problem!

Amazon Customer
Well-made & very useful for design study.

Marvin P.
Very Effective Switch where Temp related control is needed.

Amazon Customer