Cheap storage temp monitoring?

[DaveBP]

Idly looking through an industrial supply catalog and came upon this idea. Those adhesive strips that have dots or bars that change color at different temperatures. Stick them all over the tank/s to see what kind of vertical and horizontal temp stratification is happening. It would require a removable insulation scheme to look in at it. I'm considering leaving at least part of my tanks exposed during the winter to heat my basement/shop. Any of you engineer types out there used these? Would they be accurate if surrounded by air that's way hotter that room temp? $15 for 10 is pretty cheap. They come in useful temp ranges. See this link.

(broken link removed)

 

[Nofossil]

They're great for troubleshooting. I bought a bunch and have them stuck on various pipes. Not so good for tanks which needs thick insulation. They make a high-resolution version which is wonderful for adjusting mixing valves. Ambient air doesn't affect them much.

 

[in hot water]

On hot pipe, 180 ish the life expectency is fairly short. Great for troubleshooting, amazingly accurate. Better than point and shoot temperature guns when used with shiny pipe.

Heatway, now Watts Radiant has been offering them for about 20 years now.

Here is one I like a little better. It will fit 3/8- 5/8 pex and 3/4 copper. Easier to move around and not much more $$. The sample is in C I believe the new version reads C & F.

hr

 

[pybyr]

Hot Rod- what's the description or part number for that nifty unit you show above?

Thanks