Vaisala launches DMP370 for hazardous gas monitoring
Wed, 16th Sep 2026 (Today)
Vaisala has launched the DMP370 Intrinsically Safe Dew Point Instrument for hazardous industrial gas applications in Australia. The device is intended for continuous moisture monitoring in sectors including hydrogen, biomethane and natural gas.
The instrument combines Vaisala's DMP37X probe and HMT370EX transmitter in a single intrinsically safe unit. It is certified for use up to Zone 0/20 under ATEX and IECEx requirements, allowing deployment in locations where combustible gases or dust may be present.
Moisture measurement is a significant issue across gas infrastructure because excess water can affect gas quality, reduce process efficiency and shorten equipment life. The challenge is greater in hazardous environments, where operators must use equipment that meets explosion-protection requirements.
This has often limited the measurement systems available. Some existing approaches require additional protective enclosures or impose installation restrictions, while others interrupt readings during regeneration or heating cycles.
The DMP370 is designed to avoid those interruptions by using continuous measurement rather than periodic regeneration. It uses Vaisala's DRYCAP dew point sensor technology and drift compensation to maintain readings over time.
The launch comes as Australia's gas sector spans both established natural gas networks and newer hydrogen and biomethane projects. In these settings, operators are under pressure to monitor gas quality while meeting safety requirements in industrial plants, pipelines and storage sites.
International demand for hydrogen is also rising. According to the International Energy Agency's Global Hydrogen Review 2026, global hydrogen demand surpassed 100 million tonnes in 2025.
Target sectors
The DMP370 is being positioned for a broad range of industrial uses, including hydrogen production and storage, fuel cell applications, electrolyser output monitoring, biogas upgrading into biomethane, gas grid injection, natural gas pipelines, chemical processing, synthetic fuels, methanol production, pharmaceuticals, electronics manufacturing, oil and gas, battery manufacturing, and compressed air and nitrogen systems.
Battery manufacturing is among the more notable target areas because dry-process environments can contain combustible carbon dust, placing them within hazardous-area classifications. Compressed air and nitrogen applications also fall within the product's scope where purge gas, inerting and moisture monitoring are required in hazardous environments.
Technical detail
The instrument has a measurement range of -70 °C to +10 °C Td/f, with typical accuracy of ±2 °C Td/f. It operates across a temperature range of -40 °C to +60 °C and a pressure range of 0 to 40 bar absolute.
In addition to its ATEX and IECEx certification, the product is FM approved for Class I, II and III, Division 1, Groups A, B, C, D, E, F and G, T4 in North America. Each unit includes a traceable calibration certificate.
Intrinsic safety is a key design element. Under this protection concept, electrical energy is limited so the instrument cannot act as an ignition source in an explosive atmosphere.
Vaisala is entering a part of the market where uninterrupted data can be important for both process control and plant safety. Operators in hydrogen and renewable gas projects, in particular, are moving from pilot installations to larger industrial systems, creating demand for instruments that can operate continuously inside classified areas.
Antti Heikkilä, Product Line Manager of Industrial Decarbonisation at Vaisala, provided brief context for the launch.
"As hydrogen and renewable gas projects move from pilot installations to full-scale industrial operations, the need for reliable, continuous gas-quality monitoring is growing. Operators need measurement solutions that support both process performance and safety in hazardous locations. With the DMP370, we're bringing Vaisala's proven DRYCAP measurement technology into hazardous locations, providing continuous dew point measurement in applications where explosion safety is essential," Heikkilä said.
First deliveries are scheduled to begin in the first quarter of 2027.