Smart + Portable Data Logger


The Feedback DataLogger and App have been designed and developed for professionals who depend on accurate, reliable readings using the very best, state of the art technology.


The combined devices log up to 100,000 data point entries for relative humidity, temperature, dew point and grains per pound, transmitted wirelessly via Bluetooth BLE technology to your mobile device.


On the App, you can visualize live readings, thermal conditions, and psychrometric charts as well as creating and exporting spreadsheets, charts, and reports.


The data logger requires the Tramex Feedback Data Logger App and a compatible iOS or Android mobile device.



  • Bluetooth BLE enabled for use with mobile devices
  • Up to 100,000 data point entries
  • Instant set up and start modes
  • Precise Ambient Relative Humidity and Temperature logging (In-situ RH logging for DL-RHTX models only)
  • Intuitive and instructive App interface
  • Adjustable Interactive chart, spreadsheet, report, and easy-export functions
  • Connectivity up to 165 ft (50 m) for highly accessible data downloads
  • Used to perform ASTM F2170 (DL-RHTX only)
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