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Monitor humidity and temperature

Hygrochron Humidity/Temperature Logger (DS1923)

This logger measures humidity as well as temperature to give a true picture of the environment.

Part No: DS1923
Range: -20°C to 85°C / 0% to 100% RH
Resolution: 0.5°C or 0.0625° / 0.6%RH or 0.04% RH
Samples: 4,000 or 2,000

$181.50 inc GST

When humidity is critical

There are many processes where humidity plays a vital role.

The Hygrochron measures temperatures between -30°C and 85°C, but also relative humidity between 0% and 100%.

Hygrochrons are useful for a variety of manufacturing and storage applications. They can can also be extremely useful for environmental monitoring in outdoor situations.

Hygrochrons measuring humidity at GD Pharma
A Hygrochron monitoring drug storage at GD Pharma.
Read more

Key Features

  • Digital Hygrometer measures humidity with 8-Bit (0.6%RH) or 12-Bit (0.04%RH) resolution
  • Temperature accuracy of ±0.5°C from -10°C to +65°C (with software correction)
  • Choice of resolution: 8-bit (0.5°C) or 11-bit (0.0625°C)
  • 512 Bytes of memory – enough for ~4,000 11-bit reading or ~8,000 8-bit readings
  • Factory-lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability
  • Individually calibrated in an NIST-traceable chamber (complies to Standard EN12830)
  • CE, FCC, and UL913 certifications

Great loggers deserve great software

Every Thermochron reader we sell comes with a full licence of eTemperature.

eTemperature is the smartest, most intuitive software for managing Thermochrons.

The Thermochron range


  • Coloured-fobs-to-suit-Thermochrons

    Standard Fob

    These sturdy plastic fobs can be used to identify your Thermochrons and make them easier to handle. They can be used to easily hang the Thermochron from a hook or attach it to an object.

  • The Thermochron Clear Fob with uniquely numbered insert

    Clear Fob

    These fobs assist in the handling and identification of your Thermochrons.  They have an insert with a unique number printed on one side. For orders over 30, we can print a logo on the reverse side.

  • card fob

    Card holder

    Thermochrons’ small size can be a drawback. These credit card-sized holders hold your Thermochron securely and have a slot for a cardboard label, making it easy to find, identify and track your loggers.

  • Waterproof-capsule-for-Thermochron

    Waterproof Capsule

    Thermochrons are water resistant but not waterproof. If you will be using the Thermochron in wet conditions or completely immersed in liquid, we recommend the use of a waterproof capsule.