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Relative Humidity Meters

On our web pages, you will find relative humidity meters that can measure relative air humidity, or combined devices that can also measure temperature as well. These relative humidity meters measure different ranges of humidity dependant on the model. Relative air humidity is an important factor in most sectors including industrial, transport and gardening. Relative humidity meters are versatile in that they can take measurements, store them to memory and then transfer data to a computer for further detailed analysis. There is also the calibration standards for the device which makes it easy to ensure that measurements are accurate. Many of our relative humidity meters come with an ISO calibration certificate and some models are legally validated. They are very useful in evaluating damage in a warehouse. If you can't find the relative humidity meters you are looking for, please contact us and we will help you find the best solution to suit your needs by calling our offices on: +44 (0)2380 987030 and our technical staff will advise you regarding our measuring instruments. Our engineers and technicians will be happy to help you with the relative humidity meters, and of course, with the other products in the fields of regulation and control, scales and balances.

Technical specifications for our Relative Humidity Meters can be found at the following links:

- PCE-HT71 series Relative Humidity Meters
  (internal sensor for temperature and humidity, memory for 32,000 values)

- PCE-MSR145 series Relative Humidity Meters
  (internal sensor)

- Log 100 / 110 series Relative Humidity Meters
  (relative humidity meters for temperature and humidity / external sensor, 60.000 measurement values)

- U12 series Relative Humidity Meters
  (temperature and humidity data loggers, EEPROM memory: 43000 values, USB)

- PCE-222 series Relative Humidity Meters 
  (4 in 1 device with internal sensors for humidity, temperature, sound and lux)

- PCE-EM882 series Relative Humidity Meters 
  (4 in 1 with external sensors for humidity, temperature, sound and lux)

- PCE-EM 886 series Relative Humidity Meters 
  (sound, light, temperature, moisture, and external temperature, auto-ranging multimeter)

- PCE-555 series Relative Humidity Meters 
  (for measuring relative humidity, temperature and dew point)

- PCE-310 series Relative Humidity Meters
  (measures, temperature, humidity and dew point)

- PCE-320 series Relative Humidity Meters
  (measures temperature, humidity and dewpoint, has connections for temperature sensors)

- PCE-HGP series
  (combined testers to measure relative and absolute moisture and temperature)

- PCE-WM1 series Relative Humidity Meters 
  (hygroscopic moisture in [g/m³] and [%], temperature, dew point ,external sensors)

- PCE-HT110 series Relative Humidity Meters 
  (external display, data logger, sensor for temperature and humidity)

- PCE-THB 40 Relative Humidity Meters
  (relative humidity meters to ambient temperature, humidity and barometric pressure)

- EBI 2-TH-6.. series Relative Humidity Meters
  (temperature and humidity data loggers / adjustable measurement / highly accurate)

- PCE-313 A series Relative Humidity Meters 
  (with memory, interface and software)

- ThermoAir3 series Relative Humidity Meters
  (relative humidity meters to measure low air flow with a directional or multidirectional sensor)

- MiniAir20 / MiniWater20 series Relative Humidity Meters
  (relative humidity meters to measure very low flow speed / automatic probe detection)

- PCE-SPS 1 series Relative Humidity Meters
  (relative humidity meters of movement to determine relative humidity, easy to use)

- PCE-APA 1 series Relative Humidity Meters
  (vacuum relative humidity meters, suitable for control and adjustments)

- PCE-G1 series Relative Humidity Meters 
  (humidity and temperature, with a large display visible from up to 50m distance)

- PCE-G1A series Relative Humidity Meters 
  (relative humidity meters with two channels to humidity and temperature)

- PCE-FWS 20 series Relative Humidity Meters 
  (relative humidity meters to measure temperature, humidity, pluviometry, wind speed, logger)

- RH5 series Relative Humidity Meters 
  (relative humidity meters for the moisture of stored paper)

- AVM-4000 series Relative Humidity Meters 
  (relative humidity meters for temperature + humidity+ pressure)

- WatchDog series Relative Humidity Meters
  (cup relative humidity meters to measure temperature, humidity, pluviometry, wind speed, logger)

- PCE-THB 38 series Relative Humidity Meters  
  (Thermometer, hygrometer and barometer in one handheld device)

- FMU series Relative Humidity Meters 
  (relative humidity meters  for fixed instalation of up to 99 humidity sensors)

- Relative Humidity Meters - Balances 
  (balance for measuring moisture content)

- Relative Humidity Meters for stationary use
  (relative humidity meters for the connection to evaluation units, standard output signal)

All relative humidity meters come calibrated, but as their sensor's accuracy deteriorates with use they should be recalibrated on a regular basis. A calibration can be done by the user of the device by using the optional calibration standards or the device can be sent to us and we will perform a recalibration that will meet ISO standards. (Calibration / recalibration of relative humidity meters).

Information about relative humidity: Relative humidity (r.h.) shows the relationship between absolute moisture (the amount really there) and the saturation state of water vapours. Relative air humidity is measured using relative humidity meters, that show on their displays from 0% (absolutely dry air) up to 100% (air that is completely saturated, such as fog, clouds or steam baths). Some models of relative humidity meters have an unlimited measurement range. The physical area is between 40 and 65% r.h. Given that hot air possesses the ability to absorb more water vapour than cold air, people feel that in winter, air is too dry and in summer it is too humid. If air heats up it increases the amount of water vapour to that of saturation. The consequence is that the % of relative humidity decreases while the real quantity of water remains constant. Something similar occurs when air is cooled, decreasing the quantity of water vapour. This increases the percentage value of relative humidity. Condensation forms when there is an excess of water in saturated conditions. Some of our relative humidity meters offer the ability to not only measure relative humidity and temperature, but can also calculate dew point and dew point temperature. Dew point temperature is defined as the temperature at which the actual vapour content of air is the maximum (100% relative humidity). Dew point temperature is independant of the actual temperature. One possibility of dew point temperature is freezing metal until its surface forms condensation. The temperature of the metal will then be the dew point temperature. As we have mentioned, many of our relative humidity meters show dew point on their display.

If you wish to view or print a selection of relative humidity meters from our catalogue, click the PDF symbol.

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Below you will find an overview of the different product groups of measuring instruments