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Caliber 4R Silver Digital Round Thermo-Hygrometer

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Description Ref # ACC-CALIBER4

This hygrometer utilizes the same sensor, circuitry and calibration as the Caliber IV. But in the shape of a traditional round design.

The classic looks of an analogue but powered by the advanced, accurate digital electronics of the Caliber line!

The Caliber 4R retains the legendary accuracy of Caliber digital hygrometers and are designed to eliminate gauge flutter with slow response updating time.

Caliber 4R displays both humidity and temperature readings, have the ability to record maximum and minimum readings and can be set to display in either Celsius and Fahrenheit scales.

Dimensions: front Diameter 55mm (2 ), Back diameter 50mm (2)

- 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
- New round design with secure magnetic mount


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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!
Displaying 1 to 1 (of 1 reviews)
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We won't be beaten on price.

We will match any lower price found with any UK retailer. Just email details to liam@cgarsltd.co.uk and he will take care of it for you.


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