Humidity Calibrator


The S904 is a completely stand-alone and transportable calibrator for humidity sensors, requiring no external services other than mains power. The calibration chamber features 5 interchangeable ports to accommodate virtually any brand, type or model of sensor. This calibrator is ideal for companies or organizations looking to calibrate large numbers of probes in a laboratory or fi eld setting.


  • Simple operation and maintenance
  • Excellent chamber stability and uniformity
  • Manual control or optional straightforward automated set point programming
  • Optional in-built data-logging for reference probe and probes under calibration