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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.



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Hygrometer | Digital Thermo Hygrometer | RS

Hygrometers

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Thermohygrometers | RS

<p>A thermohygrometer is a handheld device that measures the moisture and the temperature within air. It does this by calculating of both air pressure and temperature changes, this then results in the moisture's percentage and temperature in the air. Common applications to use a thermo-hygrometer would be the need to monitor the humidity, such as in an office, factories or other indoor environments that require optimum working conditions.</p><p>RS offers a range of thermohygrometers, many of which can be calibrated to UKAS or RS Calibration standards to ensure accurate measurements.</p><h2>Applications for a Thermohyrometer</h2><p>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.</p><h2>Why choose RS for your Thermohygrometer?</h2><p>RS has a range of thermohygrometers from leading brands such as Testo, Rotronic Instruments, Fluke and our very own brand RS PRO, but you can utilise our in-house calibration service.</p>

Shop our range of Digital Hygrometers. Browse our latest Digital Hygrometers offers. Find out more today at RS.

Digital Hygrometers | RS

<p>A digital hygrometer is an instrument capable of measuring the moisture in the air by calculating of both air pressure and temperature changes, this then results in the moisture's percentage in the air. Application to use a digital hygrometer would be the need to monitor the humidity, such as a food processing plant where it's important to ensure the humidity stays at a consistent as it could affect production.</p><p>Most digital hygrometers use temperature to give the relative humidity (RH) for a particular temperature and display it as a percentage. All digital hygrometers feature a digital displays for easy to read and monitor measurements. </p><p>RS offers a range of digital hygrometers, many of which can be calibrated to UKAS or RS Calibration standards to ensure accurate measurements.</p><p>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.</p><h2>Why choose RS for your Digital Hygrometer?</h2><p>RS not only has a vast range of Digital 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.</p>

Digital Hygrometers

Why choose RS for your Digital Hygrometer?

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