I have the older Amtrol with the manual temperature switch on the front and was had an issue with it. My Knight boiler has a sensor input connection for boiler sensors and so I bought this to give it a try. It has the marking for different boilers so installation was easy and works great with my boiler. Well worth the money.
Mark
Minnesota
11 years ago
Verified Buyer
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Excellent sensor
Worked fine in my Amtrol Boilermate so I could let my condensing boiler modulate around the sensor's temperature. Installed in less than 5 minutes.
Vinny
NY
14 years ago
Verified Buyer
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