Tinytag Ultra Radio


  • Indoor
  • Freezer
  • Cryogenic

Discreet, indoor radio very low temperature data logger for use with PT1000 probe

-200 to +100°C

Requires PT1000 Probe

The TR-3201 uses one of the Tinytag PT1000 probes for very low temperature monitoring. PT1000 probes monitor from -200 to +100°C, making this a versatile solution for freezers and cryogenic applications. The logger's design makes it ideal for discreet indoor monitoring in a variety of buildings.

This logger is a component part of the Tinytag Radio data logging system which operates using wireless connectivity. The system requires a receiver and Tinytag Explorer Radio software. To wire your own probe/sensor to this logger you can get the 5-Pin Plug (ACS-9703).

Please note: this product is only for sale in the EU and Australia.

  • Wireless
TR-3201 Tinytag Ultra Radio low temperature data logger for PT1000 probe

Introduction to the Tinytag Radio System

The system is easy to set-up: it consists of a receiver connected to a computer or LAN and a number of radio loggers which self-configure to form a robust mesh network.

Radio loggers work together to send information to the receiver. They are able to receive, log, store and transmit data. If a logger is out of range and cannot send the data directly to the receiver, it will re-route it via other loggers. If a logger has lost all connections and is unable to find a way of sending the data to the receiver, it stores it locally until communications are restored. Alarm warnings can be sent via email or SMS enabling corrective action to be initiated.

Find out more about the Tinytag Radio System

Tinytag PT1000 Low Temperature Probes

Suitable for very low temperature applications such as freezer and cryogenic monitoring, PT1000 probes monitor from -80 to +100, or -200 to 200°C (depending on the model) and are waterproof to IP68.

Tinytag PT1000 Probes

Calibration Certificates

You have the option of purchasing calibration certificates with our loggers. Standard measurement points are 0 and 30°C for temperature, 20 and 80 % RH (at 25°C) unless specified otherwise. If you don't order calibration, we guarantee the accuracy figures on our datasheets at the point of purchase.

Find out more about Tinytag calibration


  • Uses a PT1000 probe
  • Robust data network
  • Local recording
  • Easy to install
  • Remote alarm signalling
  • 100m typical range (line of sight)
  • High accuracy and reading resolution
  • User-replaceable battery
  • Low battery monitor

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Help & Support >

Technical support information including FAQs, manuals and documentation for this data logger.

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