Hygrometers

A hygrometer measures the humidity and water vapour in the air. A hygrometer measures both humidity and temperature, and it does this by calculating of both air pressure and temperature changes, which results in the moisture's percentage in the air. Used in environments that require constant monitoring of humidity, this could be in food processing where it's imperative that humidity stay at a constant as it could affect production.

Within a volume of air, the maximum amount of water vapour it can hold varies by temperature with cold air holding a fraction of what warmer air will. Most moisture meters use temperature to give the relative humidity (RH) for a particular temperature and display it as a percentage. Most models have a built-in digital LCD display but there are several which use an analogue readout, these are primarily for continuous monitoring. These instruments all feature built-in displays and some offer features such as datalogging, web bulb temperature or dewpoint.

Types of Hygrometers?

Depending on your requirements, the hygrometer needed is important, some types of hygrometers include:

  • Thermo-hygrometers are used to test HVAC systems and office environments. They often feature a probe which can be inserted through an air-conditioning duct to get readings from within the ducting.
  • Digital hygrometers offer a modern approach to for easy-to-read measurements and sometimes feature an in built data logger for recording measurements for analysis. Digital thermohygometers feature a digital display, such as the Testo 608-H1 uses an LED display to monitor temperature changes and a capacitive humidity sensor to provide dew-point calculations through the use of a probe. However digital thermohygrometers are available as resistive and capacitive, both have different methods to achieve accurate results.

What's the difference between a Hygrometer and a moisture meter?

A hygrometer measures the moister in the air and a moisture meter measures the moisture within a material such as wood, paper or stud walls.

Why choose RS for a Hygrometer?

RS not only has a vast range of hygrometers from leading brands such as Testo, Rotronic Instruments, Fluke and our very own brand RS PRO, but an in house calibration service. This calibration service is to RSCAL and UKAS standards and ensures accurate and reliable measurements.

80 Products showing for Hygrometers

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In Stock
RS PRO RS-325A Hygrometer 60 °C, ±4 %RH Accuracy, 60 °C Max, 99 %RH Max
  • RS stock no. 195-9129
Subtotal (1 unit)
R 584,40(exc. VAT)
R 584,40/unit
In Stock
RS PRO RS-91 Hygrometer 50 °C, ±3 %RH Accuracy, 60 °C Max, 100 %RH Max
  • RS stock no. 155-8900
Subtotal (1 unit)
R 1 105,92(exc. VAT)
R 1 105,92/unit
In Stock
RS PRO TA298 Hygrometer, ±5 %RH Accuracy, 70 °C Max, 99 %RH Max
  • RS stock no. 196-8736
Subtotal (1 unit)
R 497,48(exc. VAT)
R 497,48/unit
In Stock
RS PRO RS1260 Hygrometer 60 °C, ±3 % HR Accuracy, 60 °C Max, 99 %RH Max
  • RS stock no. 123-2210
Subtotal (1 unit)
R 2 523,83(exc. VAT)
R 2 523,83/unit
Last RS stock
RS PRO Hygrometer 60 °C, ±5 % Accuracy, 60 °C Max, 80 %RH Max
  • RS stock no. 165-1486
Subtotal (1 unit)
R 406,93(exc. VAT)
R 406,93/unit
Temporarily out of stock
RS PRO Hygrometer 50 °C, ±5 % Accuracy, 50 °C Max, 99 %RH Max
  • RS stock no. 106-5306
Subtotal (1 unit)
R 2 027,03(exc. VAT)
R 2 027,03/unit
In Stock
RS PRO Hygrometer 60 °C, ±3 %RH Accuracy, 100 °C Max, 100 %RH Max
  • RS stock no. 127-8297
Subtotal (1 unit)
R 11 066,49(exc. VAT)
R 11 066,49/unit
In Stock
RS PRO RS1364 Hygrometer 60 °C, ±3 %RH Accuracy, 60 °C Max, 95 %RH Max
  • RS stock no. 123-2233
Subtotal (1 unit)
R 3 868,95(exc. VAT)
R 3 868,95/unit
In Stock
RS PRO RS1360A Hygrometer 60 °C, ±3 %RH Accuracy, 60 °C Max, 95 %RH Max
  • RS stock no. 123-2230
Subtotal (1 unit)
R 3 466,28(exc. VAT)
R 3 466,28/unit
In Stock
RS PRO Hygrometer 60 °C, ±3 %RH Accuracy, 100 °C Max, 100 %RH Max
  • RS stock no. 127-8296
Subtotal (1 unit)
R 8 016,04(exc. VAT)
R 8 016,04/unit
Temporarily out of stock
RS PRO RS-72TH Thermohygrometer 60 °C, ±3.5 %RH Accuracy, 60 °C Max, 100 %RH Max
  • RS stock no. 206-8740
Subtotal (1 unit)
R 998,07(exc. VAT)
R 998,07/unit
Temporarily out of stock
RS PRO RS1362 Hygrometer 50 °C, ±3 %RH Accuracy, 1333 °C Max, 95 %RH Max
  • RS stock no. 123-2232
Subtotal (1 unit)
R 22 807,44(exc. VAT)
R 22 807,44/unit
In Stock
KIMO TH110 Hygrometer 80 °C, ±1.8 % Accuracy, 100 °C Max, 95 %RH Max
  • RS stock no. 276-9883
  • Mfr. Part No. TH110-POS
Subtotal (1 unit)
R 5 724,19(exc. VAT)
R 5 724,19/unit
In Stock
Testo 622 Hygrometer 60 °C, ±2 %RH, ±3 %RH Accuracy, 60 °C Max, 100 %RH Max
  • RS stock no. 777-0444
  • Mfr. Part No. 0560 6220
Subtotal (1 unit)
R 6 498,12(exc. VAT)
R 6 498,12/unit
In Stock
Extech 445713 Thermohygrometer 50 °C, ±5 %RH Accuracy, 60 °C Max, 99 %RH Max
  • RS stock no. 288-0190
  • Mfr. Part No. 445713
Subtotal (1 unit)
R 1 194,18(exc. VAT)
R 1 194,18/unit
In Stock
Extech 445814 Thermohygrometer 60 °C, ±4 %RH Accuracy, 60 °C Max, 99 %RH Max
  • RS stock no. 288-0193
  • Mfr. Part No. 445814
Subtotal (1 unit)
R 1 101,22(exc. VAT)
R 1 101,22/unit
In Stock
KIMO TH110 Hygrometer 80 °C, ±1.5 % Accuracy, 100 °C Max, 95 %RH Max
  • RS stock no. 276-9885
  • Mfr. Part No. TH110-ANA
Subtotal (1 unit)
R 5 411,91(exc. VAT)
R 5 411,91/unit
In Stock
KIMO Thermohygrometer 70 °C, ±1.8 %RH Accuracy, 70 °C Max, 95 %RH Max
  • RS stock no. 241-0448
  • Mfr. Part No. HD 110 S
Subtotal (1 unit)
R 7 048,14(exc. VAT)
R 7 048,14/unit
In Stock
Brannan 13/222/3 Hygrometer 50 °C, 50 °C Max
  • RS stock no. 206-8913
  • Mfr. Part No. 13/222/3
Subtotal (1 unit)
R 514,82(exc. VAT)
R 514,82/unit
In Stock
Extech 445703 Hygrometer 60 °C, ±5 % Accuracy, 60 °C Max, 99 %RH Max
  • RS stock no. 287-3795
  • Mfr. Part No. 445703
Subtotal (1 unit)
R 1 144,67(exc. VAT)
R 1 144,67/unit
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