DMT345 and DMT346 Dewpoint Transmitters for High Temperature Applications

Vaisala DRYCAP® Dewpoint Transmitters DMT345 and DMT346 are the best-in-class choice for direct measurement of humidity without sampling systems in high-temperature applications such as baking ovens or high-temperature dryers. Vaisala DRYCAP® Sensor provides accurate, reliable measurement with excellent long-term stability and fast response time.


  • DMT345 measures humidity at temperatures up to 180 °C (356 °F)
  • DMT346 measures humidity at temperatures up to 350 °C (+662 °F)
  • Dew point accuracy ±2 °C (±3.6 °F)
  • Condensation-resistant
  • Unique auto-calibration feature
  • Analog outputs, RS-232/485, WLAN/LAN
  • Modbus protocol support (RTU/TCP)

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