Humidity indicators

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	Humidity indicators
	In our webpages, you will find humidity indicators that can measure relative air humidity, or combined devices that can also measure temperature. These humidity indicators measure different ranges of humidity depending on the model. Relative air humidity is an important factor in most sectors, icluding industrial, transport and gardening. They are versatile inthat they can take measurements, store them to memory and transfer data to a computer for further detailed analysis. There is also the calibration standards for the device whichmakes it easy to ensure that measurements are their most accurate. Many of our humidity indicators come with an ISO calibration certificate and some models are legally validated. They are very useful in evaluating damage in a warehouse. If you don't find the humidity indicators you are looking for, please contact us and we will help you find the best solution to suit your needs by calling our German offices: +49 (0)29 03 976 99-52; our Italian offices: +39 0583 975 114; or our Spanish offices: +34 967 543 548 and our technical staff will advise you regarding our products. Technical specifications for our moisture indicators can be found at the following links:
	- PCE-HT71 series humidity indicators (internal sensor for temperature and humidity, memory for 32,000 values)
	- PCE-222 series humidity indicators (4 in 1 device with internal sensors for humidity, temperature, sound and lux)
	- PCE-EM882 series humidity indicators (4 in 1 with external sensors for humidity, temperature, sound and lux)
	- PCE-555 series humidity indicators (for measuring relative humidity, temperature and dew point)
	- PCE-310 series humidity indicators (measures, temperature, humidity and dew point)
	- PCE-HGP series humidity indicators (combined indicators to measure relative and absolute humidity and temperature)
	- PCE-320 series humidity indicators (measures temperature, humidity and dewpoint, has connections for temperature sensors)
	- PCE-313 A series humidity indicators (with memory, interface and software)
	- PCE-3000 series humidity indicators (measures relative humidity, temperature, dew point, with memory)
	- PCE-WM1 series humidity indicators (hygroscopic moisture in [g/m³] and [%], temperature, dew point ,external sensors)
	- PCE-HT110 series humidity indicators (external display, data logger, sensor for temperature and humidity)
	- PCE-THB 38 series humidity indicators (Thermometer, hygrometer and barometer in one handheld device)
	- Humidity indicators - Balances (balance for measuring moisture content)
	All humidity indicators 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 that 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 humidity indicators).
	Recalibration standards Some devices use a ISO calibration certificate for humidity indicators calibration chamber for humidity indicators
	Information about relative humidity: Relative humidity (r.h.) shows the relationship between absolute humidity (the amount really there) and the saturation state of water vapour. Relative air humidity is measured using humidity indicators, that show on their displays from 0% (absolutely dry air) up to 100% (air that is completely saturated, such as fog, clouds or steam bath). Some models of humidity indicators ave an unlimited measurement range. Teh physical area is between 40 and 65% r.h. Given that hot air posesses 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 humidity indicators 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 humidity indicators show dew point on their display.
	If you wish to view or print a selection of moisture indicators from our catalogue, click the PDF symbol.