Fluke Calibration 1620A DewK Thermo-Hygrometer (formerly Hart Scientific)
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  • Superior accuracy (up to 0.125%)
  • Network enabled
  • Stores up to 400,000 data points
  • Wireless option
  • Accepts two interchangeable sensors
  • NIST-traceable
  • Up to sixteen different display setups
  • Advanced functions

The Fluke Calibration 1620A DewK Thermo-Hygrometer revolutionizes environmental monitoring for calibration laboratories. Two types of sensors are available from Fluke Calibration, and the DewK may be originally purchased with either one. The high-accuracy sensor ("H" model) reads temperature to ± 0.125 °C over a calibrated range of 16 °C to 24 °C. Relative humidity readings are to ± 1.5 %RH from 20 %RH to 70 %RH.

The standard-accuracy sensor ("S" model) reads temperature to ± 0.25 °C over its calibrated range of 15 °C to 35 °C. Relative humidity readings are to ± 2 %RH from 20 % RH to 70 %RH.

All DewK sensors come with NVLAP accredited certificates of calibration for both temperature and humidity, complete with data and NIST traceability. Fluke provides exceptional uncertainties, including total test uncertainty ratios better than 3:1 for both temperature and relative humidity—even for the high-accuracy sensors!

Please consider these optional accessories.
Fluke Calibration DewK Sensors (formerly Hart Scientific)
Standard or high accuracy sensors for the Fluke Calibration 1620A DewK digital temperature and humidity logger
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Fluke Calibration LogWare III Software (formerly Hart Scientific)
LogWare III Software allows you to get the most out of your DewK
Fluke Calibration Sensor Cable Extensions (formerly Hart Scientific)
Cable extensions for DewK sensors
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Fluke Calibration Spare Power Supply (formerly Hart Scientific)
100 to 240 VAC Spare Power Supply
Fluke Calibration Protective Case for DewK (formerly Hart Scientific)
Protective Case for DewK Thermo-Hygrometer and Sensors