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Caliber IV - Digital Hygrometer Thermometer

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Description Ref # CALIBERIV

The Western Caliber IV digital hygrometer accurately measures and displays relative humidity and temperature
to assure your cigars are stored in the ideal conditions keeping them in prime smoking condition.

Same great features as the Caliber III, but now with the ability to adjust calibration. A great digital hygrometer
with excellent accuracy at an affordable price.


Super slim profile with secure magnetic mount.
Size 10cm x 3cm x 1cm
(3-7/8" x 1-1/4" x 3/8")


Measuring Range: 20% to 99% RH (relative humidity)
Resolution: 1%
Accuracy, humidity: +/- 1% (40%-80%) +/- 3% other
Updating time: 10 seconds


Measuring Range: 0 to 50 C/ 32-120F
Resolution: 1 degree
Accuracy: +/-1 C/F

Uses one CR2032 battery (supplied)

- Uses calibratable with easy to use digital set button
- ZX circuit technology prevents false readings
- Advanced humidity sensor maintains accuracy to +/- 1% @ 70% RH
- Fahrenheit/Celcius switchable
- High/Low memory for humidity and temperature
- Fahrenheit/Celsius switchable
- Slim profile design with secure magnetic mount

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Displaying 1 to 5 (of 7 reviews)
Result Pages:  1  2  [Next >>] 
by Daniel on Monday 04 January, 2016
Reliable, accurate and very easy to set up. I feel a lot more confident having it in the humidor.
by Staff on Monday 27 July, 2015
Similar to what I mentioned about the Caliber IV hygrometer, the 4R works in the same way delivering accuracy and precision. Although what's noticeably different is the style as it retains the traditional looks of an analogue hygrometer, but with the benefits of the updated digital features. If you like the Digital hygrometer but like the retro feel, pick one of these up!
by Staff on Monday 27 July, 2015
The Caliber IV is absolutely fantastic, what I like most about this hygrometer is the precision/accuracy, the digital display and it's slim but sleek profile design. Suitable to fit inside any travel/small desktop humidor. If you want an efficient and reliable digital hygrometer, pickup the Caliber IV (It's even supplied with the batteries!)
by Ross on Thursday 25 September, 2014
My first two purchases were the Xikar Hygrometer Rectangular version. On both of these Xikar hygrometers the tolerance is 2% either way whereas the Caliber IV is 1%. Both Xikars were not within specification using the Boveda Hygrometer Test kit. Bought a Caliber and popped it into the bag and within 24 hours it is reading bang on 75%, as it should. Both Xikars are being returned for the Caliber IV. Fantastic hygrometer with easy to read Relative Humidity (RH) and Temperature and on top of that you can alter the device if it does start to drift. Please don't make the same mistake I did. Go for one of these. You won't be disappointed!
by Jason on Monday 04 November, 2013
Bought one of these to act as a secondary back up to my main electric Humidifier. After doing a 24 hour one step test this unit was 100% spot on. So when I placed it inside my Humidor I was shocked when it showed me my humidifier was out by 8%. Unlike my Humidifier this unit is still inside my humidor giving me piece of mind that the % levels are correct.
Displaying 1 to 5 (of 7 reviews)
Result Pages:  1  2  [Next >>] 

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