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


Downloads
Related Products
EXAIR Digital Air Flow Meter – 5 Ways to Monitor & Reduce Compressed Air Waste
The EXAIR Digital Air Flow Meter is an advanced digital compressed air monitoring solution designed to measure airflow, detect waste, and improve efficiency using reliable EXAIR air flow monitoring systems.
- ✓Real-time compressed air flow monitoring with accurate digital airflow measurement.
- ✓Easy installation without cutting, welding, or calibration required.
- ✓Permanent or temporary mounting options with LED display for precise airflow readings.
- ✓Compatible with iron, aluminum, and copper pipes — measures airflow in SCFM and m3/hr.
- ✓Detects compressed air waste and leaks using reliable EXAIR air flow monitoring systems.
EXAIR Digital Air Flow Meter – 5 Ways to Monitor & Reduce Compressed Air Waste
The EXAIR Digital Air Flow Meter is an advanced digital compressed air monitoring solution designed to measure airflow, detect waste, and improve efficiency using reliable EXAIR air flow monitoring systems.
- ✓Real-time compressed air flow monitoring with accurate digital airflow measurement.
- ✓Easy installation without cutting, welding, or calibration required.
- ✓Permanent or temporary mounting options with LED display for precise airflow readings.
- ✓Compatible with iron, aluminum, and copper pipes — measures airflow in SCFM and m3/hr.
- ✓Detects compressed air waste and leaks using reliable EXAIR air flow monitoring systems.
Vac-u-Gun Exair Pneumatic Hand Vacuum Vacuum Cleaner
Move parts, materials or scrap – without using moving parts!
- Easily move granular material such as pellets or grains.
- Simple to install, can be retrofitted to existing pipelines.
- Various materials and diameters available for all applications.
Vac-u-Gun Exair Pneumatic Hand Vacuum Vacuum Cleaner
Move parts, materials or scrap – without using moving parts!
- Easily move granular material such as pellets or grains.
- Simple to install, can be retrofitted to existing pipelines.
- Various materials and diameters available for all applications.
Exair Digital Static Meter
Locate the source of the static problem!
- The Model 7905 Digital Static Meter allows for easy one-handed static measurements.
- In most cases, the highest voltage reading will indicate the source of the static problem.
- Sensitive and responsive, it indicates surface tension and polarity on objects up to ±20 kV when measured one inch (25 mm) away.
Exair Digital Static Meter
Locate the source of the static problem!
- The Model 7905 Digital Static Meter allows for easy one-handed static measurements.
- In most cases, the highest voltage reading will indicate the source of the static problem.
- Sensitive and responsive, it indicates surface tension and polarity on objects up to ±20 kV when measured one inch (25 mm) away.
Antistatic Ion Generating Bar – Ionizing Bar Exair Gen 4
Compact and robust design for static elimination in industrial environments.
- Low cost option for static elimination!
- No compressed air required for operation!
- Charge dissipation power up to ±5 kV!
- Effective up to 5 cm distance from the target!
Antistatic Ion Generating Bar – Ionizing Bar Exair Gen 4
Compact and robust design for static elimination in industrial environments.
- Low cost option for static elimination!
- No compressed air required for operation!
- Charge dissipation power up to ±5 kV!
- Effective up to 5 cm distance from the target!
LineVac Exair
The LineVac EXAIR is a high-efficiency pneumatic conveyor designed to move parts, materials, scrap, and granular bulk materials through pipelines with no moving parts and minimal maintenance requirements.
- ✓Moves granular materials such as pellets, grains, scrap, and bulk materials through existing pipelines.
- ✓Easy installation — fits into existing pipelines with various materials and diameters available.
- ✓No moving parts — zero maintenance required for continuous reliable operation.
- ✓Reliable LineVac EXAIR pneumatic conveying solutions for industrial bulk material handling.
LineVac Exair
The LineVac EXAIR is a high-efficiency pneumatic conveyor designed to move parts, materials, scrap, and granular bulk materials through pipelines with no moving parts and minimal maintenance requirements.
- ✓Moves granular materials such as pellets, grains, scrap, and bulk materials through existing pipelines.
- ✓Easy installation — fits into existing pipelines with various materials and diameters available.
- ✓No moving parts — zero maintenance required for continuous reliable operation.
- ✓Reliable LineVac EXAIR pneumatic conveying solutions for industrial bulk material handling.
Ionized Air Jet – Ion Air Jet Exair Gen 4
Effective way to remove static manually!
- No moving parts, maintenance free!
- High instantaneous air flow!
- More air volume with less energy consumption!
- 5:1 air amplification ratio!” ”What is the Exair Ionized Air Jet?
Ionized Air Jet – Ion Air Jet Exair Gen 4
Effective way to remove static manually!
- No moving parts, maintenance free!
- High instantaneous air flow!
- More air volume with less energy consumption!
- 5:1 air amplification ratio!” ”What is the Exair Ionized Air Jet?
EXAIR Ultrasonic Leak Detector – 5 Proven Ways to Find Costly Compressed Air Leaks
The EXAIR Ultrasonic Leak Detector — eliminating waste is the first step in a successful compressed air savings project.
- ✓Find and eliminate leaks at any point in your system using EXAIR ultrasonic leak detection technology.
- ✓Reduce the load on your compressed air generation system with EXAIR air leak detection.
- ✓Detect steam, refrigerant gas, and vacuum leaks with ultrasonic leak detection equipment EXAIR.
- ✓Reduce your operating costs and the environmental impact of operation with EXAIR ultrasonic leak detection solutions.
EXAIR Ultrasonic Leak Detector – 5 Proven Ways to Find Costly Compressed Air Leaks
The EXAIR Ultrasonic Leak Detector — eliminating waste is the first step in a successful compressed air savings project.
- ✓Find and eliminate leaks at any point in your system using EXAIR ultrasonic leak detection technology.
- ✓Reduce the load on your compressed air generation system with EXAIR air leak detection.
- ✓Detect steam, refrigerant gas, and vacuum leaks with ultrasonic leak detection equipment EXAIR.
- ✓Reduce your operating costs and the environmental impact of operation with EXAIR ultrasonic leak detection solutions.
EXAIR Digital Noise Level Meter – 5 Ways to Reduce Industrial Noise & Comply with NOM-011-STPS-2001
Long-term exposure to high sound levels can lead to hearing loss, operator fatigue, reduced productivity, and safety risks. Implementing reliable EXAIR noise level detection systems allows companies to monitor workplace noise conditions and take corrective actions before noise exposure becomes dangerous.
The unit provides accurate noise level measurement capabilities through a simple and easy-to-use handheld design. It measures sound levels between 35 dB and 130 dB and includes both A and C weighted measurement scales for evaluating different industrial sound conditions. These measurement options help maintenance personnel and safety managers analyze noise levels accurately across multiple applications. One of the key advantages of this sound level meter for industrial use is its ability to operate in dynamic industrial environments.
The instrument includes fast and slow response time settings that allow users to measure both stable and rapidly changing sound conditions. The fast response setting captures sudden noise variations, while the slow response setting provides stable readings for continuous monitoring applications. The integrated Max Hold function continuously records and updates the highest detected sound level during operation. This feature is especially useful for identifying the loudest areas in industrial facilities and evaluating noise generated by compressed air equipment, machinery, and manufacturing processes.
Digital noise monitoring EXAIR technology is commonly used in manufacturing plants, automotive facilities, packaging operations, food processing plants, and metalworking industries. Companies implementing these systems can reduce workplace risks, improve employee safety, support hearing conservation programs, and create safer industrial environments. For more information visit EXAIR Official Website and OSHA.
The EXAIR Digital Noise Level Meter is a professional sound monitoring device designed for accurate industrial noise measurement and workplace safety compliance using advanced EXAIR noise level detection systems.
- ✓Digitally measure noise levels from 35 dB to 130 dB in industrial work environments.
- ✓Includes portable carrying case and 9V battery for immediate use.
- ✓Fast and slow response modes plus Max Hold function for dynamic environments.
- ✓Helps comply with NOM-011-STPS-2001 workplace noise regulations.
- ✓Reliable EXAIR noise level detection systems for industrial safety programs.
EXAIR Digital Noise Level Meter – 5 Ways to Reduce Industrial Noise & Comply with NOM-011-STPS-2001
Long-term exposure to high sound levels can lead to hearing loss, operator fatigue, reduced productivity, and safety risks. Implementing reliable EXAIR noise level detection systems allows companies to monitor workplace noise conditions and take corrective actions before noise exposure becomes dangerous.
The unit provides accurate noise level measurement capabilities through a simple and easy-to-use handheld design. It measures sound levels between 35 dB and 130 dB and includes both A and C weighted measurement scales for evaluating different industrial sound conditions. These measurement options help maintenance personnel and safety managers analyze noise levels accurately across multiple applications. One of the key advantages of this sound level meter for industrial use is its ability to operate in dynamic industrial environments.
The instrument includes fast and slow response time settings that allow users to measure both stable and rapidly changing sound conditions. The fast response setting captures sudden noise variations, while the slow response setting provides stable readings for continuous monitoring applications. The integrated Max Hold function continuously records and updates the highest detected sound level during operation. This feature is especially useful for identifying the loudest areas in industrial facilities and evaluating noise generated by compressed air equipment, machinery, and manufacturing processes.
Digital noise monitoring EXAIR technology is commonly used in manufacturing plants, automotive facilities, packaging operations, food processing plants, and metalworking industries. Companies implementing these systems can reduce workplace risks, improve employee safety, support hearing conservation programs, and create safer industrial environments. For more information visit EXAIR Official Website and OSHA.
The EXAIR Digital Noise Level Meter is a professional sound monitoring device designed for accurate industrial noise measurement and workplace safety compliance using advanced EXAIR noise level detection systems.
- ✓Digitally measure noise levels from 35 dB to 130 dB in industrial work environments.
- ✓Includes portable carrying case and 9V battery for immediate use.
- ✓Fast and slow response modes plus Max Hold function for dynamic environments.
- ✓Helps comply with NOM-011-STPS-2001 workplace noise regulations.
- ✓Reliable EXAIR noise level detection systems for industrial safety programs.
























