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Welcome Amazon Customers

Congratulations on choosing a Thermochron.

Thermochrons have been a trusted temperature and humidity logging solution for more than 20 years, and while other loggers have come and gone, Thermochrons’ unrivalled durability, reliability and accuracy have kept them at the top.

Main Features

  • Stainless Steel Case
  • Wide Temperature Range
  • Long Battery Life
  • Wide Variety of Applications

Temperature Range

DS1921G-22 to 185-30 to 85
DS1922L-22 to 185-30 to 85
DS1922T32 to 2570 to 125
DS1922E59 to 28415 to 140
DS1923*-4 to 185-20 to 85
* DS1923 also measures humidity (0 to 100% RH)


Battery Life

Thermochrons contain an internal Lithium battery. Depending on the sample rate, these tiny batteries can last up to 10 years.

The battery is not replaceable, so when it is depleted, the Thermochron needs to be replaced.

What affects battery life?

The main factor that determines battery life is the sample rate. Thermochrons are capable of sampling temperatures every second, but this will deplete the battery within a few weeks. In typical use, however, we expect to get 5-6 years out of the battery.


Thermochrons are very tough. They’re also fairly simple – a battery, a circuit board and a sensor, all in a stainless steel case – so there’s not much to go wrong.

That said, in every manufacturing process there are occasional duds. If you get one, we’ll offer our apologies and replace it straight away.

Some things are not covered by the warranty.

  • The battery – The battery has a long but not infinite life. If the battery is dea
  • Water damage – Thermochrons are extremely water resistant but they are not rated as waterproof. If you need to monitor temperatures in liquids, use a waterproof capsule.

Making a Warranty Claim

If you believe the Thermochron you bought from us is a basket case, then your first step is to send an email to:

[email protected]

We will get in touch to discuss the details and, in most cases, dispatch a replacement the same day.

You can also call us on:

+61 2 9614 6417 (Australia)

We are here Monday to Friday 9am to 5pm Sydney Australia time. (Google “What is the time in Sydney” to figure out how that relates to your part of the world).

How can we help?