Temperature discrepancy/problem with probe??

You are going to have some heat loss regardless of how you mount the probe.
Mine are directly foil taped to the flex a watt and then I adjust the thermostat accordingly.

Quote:

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Originally Posted by coldbloodaddict

move the probe away from the heat a little at a time until the therm and temp gun read the same.


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Thank you, everyone. I took the above advice and the problem was solved within hours. I was really confused b/c on my original rack, the difference btw the t-stat reading (with the probe taped to the Flexwatt) and the tub/substrate surface temp was only a couple of degrees. When I was suddenly getting a 15 degree difference on the second rack, I couldn't figure it out.

Of course, the solution was simple and should have been obvious - I knew you all would steer me right!

Have a great day.