S 904

Humidity Calibrator

The S904 is a completely stand-alone and transportable humidity calibrator, requiring no external services other than mains power. The calibration chamber features 5 interchangeable ports to accommodate virtually any brand, type or model of humidity sensor.

This calibrator is ideal for companies or organizations looking to calibrate large numbers of probes in a laboratory or field setting. 

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  • Technical Specifications
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  • Rh range:10 to 90 % rh
  • Accuracy:±1 % rh (10-70 % rh);±1.5 % rh (70-90 % rh)
  • Stability:±0.2 % rh (20-80 % rh)
  • Ramp Rate:3 % rh/minute
  • Temperature Accuracy:±0.2°C
  • Temperature Stability:±0.1°C
  • Chamber Size:105x105x160 mm
  • Power Supply:86 to 264 Vac