Cigar Oasis Caliber IV Slim Digital Hygrometer

Cigar Oasis

The latest version of the acclaimed Caliber series from Western Humidor (now Cigar Oasis) Western Humidor has always been known as the maker of the most accurate hygrometers in the cigar industry and beyond. The Western Humidor Caliber was the original digital hygrometer for the cigar industry.

The famed Caliber IV features a slim profile design, humidity & temperature readings & Fahrenheit/Celsius switchable. It arrives pre-calibrated out of the box. Gauges between 20-90% Relative humidity (RH)

  • Advanced humidity sensor maintains accuracy to +/- 1%
  • User recalibrate-able
  • Slim profile design
  • Humidity & temperature readings
  • Three day high/low & averages for humidity & temperature
  • Fahrenheit/Celsius switchable
  • Secure magnetic mount
  • Battery included

Dimensions: Length: 4” Width: 1.3” Depth: 0.4”


Customer Reviews

Based on 1181 reviews
James C
Still the best Digital hygrometer on the market

Just received 3 Cigar Oasis Caliber IV Slim Digital Hygrometer in Canada. Well packaged and fast delivery. I compared my 10 years old Weston caliber IV, there are no difference. Still the same, and still the best on the market. Highly recommended

gerald graves

This is not a 1% accuracy meter mine checked out against two meters one 1.8% and the other 2% and it tested out at 4% low on readings at various temps. Did well on readings after calibrating settings.

Ron Savage
Finally an accurate and adjustable meter

Earlier this year I purchased a Daniel Marshall humidor. It arrived with their version of a digital hygrometer. This particular unit was fairly accurate so I ordered two more thinking I’d receive similar meters. Not the case. One was 9% off and the other was 12% off. These units are not adjustable in any regard. $50 I could have donated to a good cause.
I took a gamble on your units since reading they were adjustable and they not only adjust but can be made accurate long term. Extremely happy about your using your meters.


Purchased 8 of these. Mary was extremely helpful organising a cheap and speedy international delivery via USPS. See pic for accuracy.

Gerald Gasser
Humidity and temp monitor

Great accuracy a d responsiveness to changes, quick delivery