Temperature, humidity & other sensors

Temperature & humidity sensors – Precise environmental monitoring for industry, laboratories and building technology

Temperature and humidity sensors are used for the reliable measurement of environmental conditions such as temperature and relative humidity. They are used in a wide range of industrial, scientific, and building technology applications where stable climate conditions must be monitored or documented.

Althen temperature and humidity sensors are ideally suited for use with modern data acquisition systems and data loggers, for example from Graphtec. They enable precise measurement and long-term monitoring of climatic conditions in:

• Production facilities
• Laboratories
• Storage and cold-storage areas
• Cleanrooms
• Building technology
• Environmental and climate measurements

Thanks to their high accuracy and reliability, these sensors contribute to quality assurance, process optimization, and improved energy efficiency.

How temperature & humidity sensors work

Temperature and humidity sensors usually combine two different sensing elements in one device:

• A temperature sensor
• A humidity sensor

Temperature measurement is commonly performed using:

• Thermistors
• RTDs (Pt100 / Pt1000)
• Semiconductor sensors

Humidity is usually measured using capacitive humidity sensors. In these sensors, the electrical capacitance of a sensing element changes depending on the moisture content of the air.

The measured values are processed electronically and output as analog or digital signals. These signals can be transmitted directly to data loggers, control systems, or monitoring systems.

Modern sensors offer high long-term stability as well as fast response times and are suitable for both stationary and mobile applications.

Typical applications

Temperature and humidity sensors are used in numerous applications:

• Climate and environmental monitoring
• Building automation and HVAC systems
• Storage and cold-room monitoring
• Cleanrooms and laboratories
• Production and process monitoring
• Environmental measurement
• Research and development
• Quality control and long-term recording

How to choose the right temperature & humidity sensor

Selecting the right sensor depends on the specific application as well as the environmental conditions and accuracy requirements.

• Temperature and humidity measurement range
  The sensor should be designed for the expected temperature and humidity ranges.
• Measurement accuracy and long-term stability
  Highly accurate sensors are required for precise applications such as laboratories or cleanrooms.
• Response time
  In dynamic environments, fast adaptation to changing conditions is important.
• Output signal and interfaces
  Depending on the data acquisition system, analog or digital output signals may be required.
• Mounting type and design
  The sensors should be easy to integrate into existing systems or measurement environments.
• Environmental conditions
  Dust, moisture, chemical exposure, or significant temperature fluctuations can influence sensor selection.
• Compatibility with data loggers and monitoring systems
  Easy integration into existing measurement and monitoring systems simplifies commissioning and data analysis.

Our experts will be happy to help you select the right temperature and humidity sensor for your application. Contact us!

Benefits of temperature & humidity sensors

• Precise measurement of temperature and humidity
  Reliable measurement data for monitoring and process supervision.
• Combined measurement in a single sensor
  Reduced installation effort and compact system integration.
• High long-term stability
  Suitable for continuous monitoring applications.
• Flexible integration into data loggers and monitoring systems
  Compatible with modern data acquisition platforms.
• Robust and versatile sensor technology
  Suitable for industrial, scientific, and building technology applications.
• Fast response times
  Ideal for dynamic environmental conditions and precise climate control.