Duct humidity transmitters are crucial for monitoring and controlling humidity in ventilation and air conditioning ducts. Our duct humidity transmitters offer precise measurements and standardized output signals, with optional temperature measurement.
This guide provides you with everything you need to know about selecting, purchasing, installing, and using your duct humidity transmitter.
What is a duct humidity transmitter?
A duct humidity transmitter, also known as a duct humidity sensor or duct humidity transducer, measures humidity in ventilation and air conditioning ducts and converts it into a standardized electrical signal (e.g., 0-10 V or 4-20 mA). These data are relayed to control or regulation systems to precisely monitor the humidity levels. You can find a complete overview of our humidity transmitters here.
What applications require a duct humidity transmitter?
A duct humidity transducer is ideal for use in ventilation and air conditioning systems where precise monitoring of the humidity in the flowing air is necessary. These devices are commonly used in industrial ventilation systems, air conditioners, and large open office spaces to ensure consistent air quality and regulate environmental conditions.
Benefits of duct humidity transmitters compared to other transmitters
Duct humidity transmitters are specifically designed for measuring humidity in ventilation and air conditioning ducts. They offer the advantage of measuring humidity precisely and continuously within the airflow, compared to other types of transmitters. Their construction, including quick-release screws, allows for fast and easy installation, while models with a display provide immediate reading of humidity values. Due to their robust design, they are ideal for industrial ventilation and air conditioning systems where high accuracy and long-term stability are required.
What types of duct humidity transmitters are available?
If you need precise humidity measurements in these areas, you can purchase our duct humidity transmitters.
You can find our other types of humidity transmitters here.
Benefits of the different types
The non-display version with quick-release screws offers a fast installation and provides a reliable solution for industrial applications. The version with a display allows direct reading of humidity values on-site, while the snap-cover housing version is particularly robust and low-maintenance, making it suitable for simple installations.
Which factors affect the lifespan and performance of a duct humidity transmitter?
The lifespan of a duct humidity transmitter largely depends on the environmental conditions within the duct. Factors like dust, moisture, and air pollutants can affect the sensors. Regular cleaning and maintenance extend the lifespan and ensure accurate measurement.
Where can I find all technical data for duct humidity transmitters?
All technical data, such as data sheets, user manuals, and conformity declarations, can be found on the respective product pages or here. These documents are available for download.
| Downloads |
| Transmitter | Data Sheet | User Manual | Declaration of Conformity |
| Duct humidity transmitter 0-10 V |  | | |
| Duct humidity transmitter high 0-10 V | | | |
| Duct humidity transmitter high with display 0-10 V | | | |
| Duct humidity transmitter 4-20 mA | | | |
| Duct humidity transmitter high 4-20 mA | | | |
| Duct humidity transmitter high with display 4-20 mA | | | |
How is a duct humidity transmitter installed?
Installation using the mounting flange (included in the delivery): Please ensure that the diameter of the mounting flange matches the diameter of the protection sleeve. To minimize measurement errors caused by heat dissipation, place the probe shaft in the center of the duct and ensure that the sensor can be easily removed if necessary.
What accessories are available for duct humidity probes?
Appropriate accessories such as mounting flanges and sintered filters protect the duct humidity probes from environmental influences and allow for secure and stable installation in ventilation and air conditioning ducts. The sintered filters are specifically designed to protect the sensors from contamination, while the mounting flanges ensure easy and flexible installation. These accessories help optimize the measurement accuracy and sensor lifespan.
