Caliber 4R Gold Digital Round Thermo-Hygrometer
Product Number: [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

  • Order Online or by Phone: 0207 372 1873
  • Orders place by 2pm are dispatched the same day
  • Next Day Delivery Available at the checkout


Caliber 4R  Gold Digital Round Thermo-Hygrometer