What types of humidity sensors are there and where are they used?

Humidity sensors/transmitters have a wide range of possible applications:

  • Room humidity sensors are used as surface-mounted or flush-mounted devices to monitor the humidity in interior rooms such as offices, hotels or conference rooms
  • In the outdoor areas they are often used in combination with temperature sensors - to protect buildings from moisture damage
  • High rooms (e.g. greenhouses, galleries or museums) can easily be protected with the help of pendants- or flush-mounted-humidity sensors (for installation in suspended ceilings)
  • Duct moisture sensor are designed for the precise measurement of humidity (and temperature) in air ducts or fans, e.g. in refrigeration, air conditioning, ventilation or clean room technology

Room humidity sensors: well-being and performance

Whether in offices, conference centers, schools or hotels - a pleasant room climate contributes significantly to well-being and performance.
The optimum room humidity is 50 %. This value is also stipulated in the Workplace Ordinance, for example. The employer is obliged to take countermeasures if the value is significantly higher or lower.
If you want to improve the indoor air, it therefore makes sense to check the humidity regularly. This allows you to take targeted measures at an early stage to maintain optimum humidity levels in the room.
Room humidity sensors reliably measure the Humidity and the air temperature in the room. Some versions also enable the evaluation of air quality (CO2, VOC PM). In this way, humidity sensors support energy-saving and needs-based room ventilation.


Duct humidity sensors: health protection and prevention of mold growth

Duct humidity sensors - like room humidity sensors - reliably measure the Humidity of the supply or extract air in air ducts. Because air that is too humid or too dry has a direct impact on health, dry air also dries out people's mucous membranes and thus promotes infectious diseases. This is often the case in winter. In summer, humid air in particular offers pathogens an ideal environment. It also encourages the growth of mold - which in turn is dangerous for both people and the building fabric.
It is therefore particularly important to regularly check the humidity in ventilation ducts and to take appropriate measures in the event of deviations from the target value tolerance.

Pendulum humidity sensor: Ideal conditions for sensitive plants

Most of our crops and vegetable plants are grown in greenhouses. During the growth phase, the plants need special temperatures and humidity to grow optimally. In greenhouses and botanical greenhouses, however, it is often not easy to keep an eye on and therefore control the temperature and humidity at all levels.
In tall glass buildings in particular, it therefore makes sense to monitor humidity and temperature with pendulum sensors under the ceiling or freely in the room. This is the only way to maintain the optimum humidity/temperature and adapt it to the needs of the respective plant species. While tropical plants can tolerate humidity levels of up to 100 %, native plants or vegetables would die or be attacked by diseases.

Surface-mounted humidity sensors: humidity protection in demanding environments

On-wall humidity sensors are particularly suitable for applications with very high humidity levels of 90% or more. Such high humidity - often in combination with very high or very low temperatures - can be found outdoors, in laboratories or cold rooms as well as in swimming pools and the like. 
This humidity can lead to damage to the building structure, mold growth and associated health risks both outdoors (e.g. in underground garages, cellars or stables) and indoors under extreme conditions (sports halls, indoor swimming pools, communal showers, etc.). It is therefore advisable to keep an eye on humidity levels and take countermeasures in good time if limit values are exceeded.

 

Back to blog