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Thermometer Variables

Posted by cugal 5b-6a NE Ks (My Page) on
Tue, Jan 14, 14 at 16:16

When my digital heat mat thermometer is set at 75F, I'm getting peak temps of 90 - 100 F when I probe the flats inside the germinator!!!

Could my digital therm be that inaccurate?


Probe of digital heat mat thermometer is inside germinator in small container of damp media........

This post was edited by cugal on Tue, Jan 14, 14 at 17:00

Follow-Up Postings:

RE: Thermometer Variables

At least for me, it's hard to know without knowing more about your setup. One thing for sure, something's going wrong. If your temperature controller is adjustable, have you tried turning it down? What happened then?

RE: Thermometer Variables

Some digital thermometers have calibration adjustments. It may rally be off, or the heater my b off.

RE: Thermometer Variables

  • Posted by cugal 5b-6a NE Ks (My Page) on
    Wed, Jan 15, 14 at 16:53

Thanks folks! I tried placing the probe of the digital heat mat thermometer directly into one of the flats & that fixed my problem (ie, gave me an accurate reading), after I'd cooked several flats of seeds, of course...........

I've never had an issue with putting the probe in a separate plastic cup of wet growing media, in years past....... Hmmmm........

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