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 ¼”), Back diameter 50mm (2”)
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