S211 / S215 / S220 – Industrial Dew Point Sensors (–100 to +50 °C Td)
High-precision sensors for continuous dew point monitoring in compressed air.
- Precise dew point measurement with ranges from –100 to +50 °C Td
- High stability and reliability for continuous monitoring in industrial applications
- Communication outputs: 4…20 mA, Modbus RTU, and Modbus TCP
- Condensation point calculation to prevent moisture formation in the compressed air network
- Robust design for industrial environments
- Easy installation inline or in bypass
- Available with or without display for local reading
- Low maintenance and long sensor service life
- Ideal for compliance with compressed air quality standards (ISO 8573)
Description

Precise Moisture Control in Compressed Air
Monitor your compressed air treatment system and maintain a stable and reliable dew point at all times.
The S211 / S215 / S220 dew point sensors are designed to deliver precise, continuous, and long-term control of moisture content in industrial applications, even under demanding conditions.
Thanks to their advanced sensor technology, these devices provide stable and highly sensitive signals, enabling reliable measurements even at extremely low humidity levels, with ranges down to –100 °C Td. This makes them an ideal solution for systems where compressed air quality is critical and must be maintained within strict parameters.
Their robust design, ease of installation, and multiple communication options allow seamless integration into monitoring and control systems—helping prevent condensation, protect equipment, reduce operational failures, and ensure compliance with international compressed air quality standards.
Applications
Dew point monitoring in industrial compressed air systems
Direct installation in refrigerated dryers and desiccant dryers
Humidity control in compressed air networks to prevent condensation
Suitable for demanding industrial environments, thanks to its IP65-rated housing
Integration into air treatment systems via G 1/2” thread or measuring chamber
Ideal for installations with limited space due to its compact design
Applications requiring reliable measurement at very low humidity levels
Advantages
Compact and robust design, easy to install in various configurations
2-wire and 3-wire connection options, adaptable to different systems
Advanced SUTO sensor technology for stable and precise long-term measurements
Integrated pressure measurement for improved dew point accuracy
Pressure chamber ensuring more accurate and repeatable readings
Stainless steel mesh filter with pore size below 30 µm to protect the sensor
High reliability in continuous operation, even in critical industrial applications




Videos
Key Data for Implementation
- Compatible with industrial monitoring and control systems for easy integration
- Stable signals even under extremely low humidity conditions
- Design optimized for continuous 24/7 operation
- Fast response to changes in air conditions
- High measurement repeatability for reliable process control
- Technology developed to reduce sensor drift over time
- Suitable for compressed air quality audits and validations
- Wide range of applications across various industries and processes


























