• -148 to 68°F (-100 to 20°C) dew point
  • ±1.8°F (±1°C) accuracy
  • Analog and digital output
  • Up to 4 alarms
  • User-selectable units of measure
  • Pressure sensor input possible
  • NEMA 4 sensor


Michell Instruments Cermet II hygrometer provides reliable on-line measurement of moisture in virtually any gas, across many applications. Cermet II combines Michell's Advanced Ceramic Moisture Sensor and a monitor unit that can be located up to 3930ft (1200m) apart. It is simple to use and has the flexibility to be applied to almost any humidity measurement application.

The instrument can display measurement units in °F or °C, dew point, ppmV, lb/mmscf or g/m3 across the measurement range -148 to +68°F (-100 to +20°C) dew point at pressures up to 5000 psig. The Cermet II can also accept a pressure signal from a pressure transmitter (optional) providing the means of active pressure compensation for concentration units of measurement.

Michell Instruments Cermet II Hygrometer Applications

  • Industrial gases
  • Dried compressed air
  • Welding gases
  • Glove boxes
  • Medical gases
  • High voltage switchgear (SF6)