I came across this site when I was looking for some thermometer that I could put in my tank that would actually come in contact with the water instead of a well.
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The Stainless Steel Bimetal Thermometers can be threaded into fittings on the tank. I am particularly interested in the one with the 48" stem that I could run to the bottom of my tank. I emailed them and they said that it only takes a reading from the bottom of the stem. I think this will give me a more accurate reading than my copper 1/2" well running to the bottom of the tank. I have noticed it is about 10* higher than actual temp. I will probably put a shorter one in at the top of the tank as well. That would free up my Alez digital one to monitor delta T on my flat plate.
(broken link removed)
The Stainless Steel Bimetal Thermometers can be threaded into fittings on the tank. I am particularly interested in the one with the 48" stem that I could run to the bottom of my tank. I emailed them and they said that it only takes a reading from the bottom of the stem. I think this will give me a more accurate reading than my copper 1/2" well running to the bottom of the tank. I have noticed it is about 10* higher than actual temp. I will probably put a shorter one in at the top of the tank as well. That would free up my Alez digital one to monitor delta T on my flat plate.