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Heartfelt Industries is a provider of the Perfect Humidor Humidity Source.


A friend recommended your products. I purchased one of the 2 oz. 65% tubes for my home humidor and am now placing a second order for the humidor I kee

Gary Weinert

After all of the good stories I have read about your beads, I decided to ditch the old sponge and bottle of 50/50 solution and give your product a try

Ryan Ott

Wow.  I ordered a pound of the 65% beads, a couple of hygrometers and a mesh bag, and they were in the mail the same day I placed my order.. ON A

Eric Coalson

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Home » Hygrometers

Round Adjustable Hygrometer Discounts Apply !
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Round Adjustable Hygrometer

Never wonder again if your digital hygrometer is accurate!

  1. Place the hygrometer in the Boveda Calibration kit or in a Ziplock with a salt sample.
  2. After 24-36 hours read the hygrometer and determine the inaccuracy if any. For this example we will say it displays 70% and the test standard is 75%, this tells us the hygrometer is displaying 5% low.
  3. Remove the hygrometer from the bag.
  4. Turn the setting knob (the large round knob) one click for each percent off, in this case turn it 5 clicks clockwise. Very IMPORTANT, while turning the knob the display will NOT change in conjunction with the number of clicks. The display may move but that is just due to the hygrometer reading and adjusting for the room rh that you are in. Turning the adjustment knob will NOT affect the display reading.
  5. After turning the adjustment knob press the reset button (the small recessed button on the front of the hygrometer). This resets the hygrometer for the inaccuracy that you have. Pressing this button will not make the display change.
  6. Return the hygrometer to the Boveda Calibration kit or the ziplock with salt sample.
  7. Let stand for 24-36 hours and check the accuracy of the hygrometer.
  8. If it is still off by a little repeat the above steps, if not put it to work.
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List Price: $29.95
Price: $21.95
20.61 EUR

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2 Product Reviews - Average rating 5 / 5 (Show All)

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Great hygrometer

- 7/13/2009

This thing is nice. I could have bought a non-adjustable unit, but I wanted one that was adjustable. This is simple to use, is well built, and fits perfectly where my old analog unit was. Recommended.

Great replacement for stock analog unit

- 3/27/2009

I installed this hygrometer to replace the worthless analog unit that came with my humidor. I'm quite happy with it. Adjusting it was easy; it was off by only one point (the Boveda calibration kit made the process a breeze). The unit feels solid, and i...

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Heartfelt Industries

PO Box 844

Dayton, Nevada 89403

Copyright © 2001-11 Heartfelt Industries Inc.


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