Compact Rugged Temperature Data Loggers

Tandd Compact Rugged Temperature Data Loggers for Application-Based Model Selection

Useful for cold-chain documentation, environmental monitoring, museums, storage rooms, facilities management, and validation workflows, where the right choice often depends on differences in sensor type, communication method, channel configuration, and deployment conditions.

• The compact rugged TR41A model comes with a built in sensor, offers our best waterproof rating (IP67) and is operable in a wide range of environments (-40 to 80°C).
• The TR42A model features an external sensor for quick response, and can be connected to a variety of sensors for measuring temperatures from -60 to 155°C. The body itself has an IP64 rating and can be used in environments of -40 to 80°C.
• The TR45 model is a versatile one channel temperature logger that can be connected to a Pt100 sensor or to a variety of thermocouple types (K, J, T, S, R). It is possible to measure and record temperature in a wide range from -199 to 1760°C.
• The all-in-one sensor for TR43A has a temperature measurement range of 0-55°C and can measure humidity from 10 to 95％RH. The body itself has an IP64 rating* and can be used in environments of -40 to 80°C.

Features

• Easy Set-Up and Data Collection with a Mobile Device via Bluetooth
• Upload and Share Data in the Cloud
• Report Creation and Output

High-temperature validation processes such as autoclave testing or thermal process verification often require devices like the HiTemp140-FR High Temperature Data Logger, engineered to withstand demanding conditions while maintaining high measurement accuracy. For submerged or confined installations, the MicroTemp100 Miniature Submersible Temperature Data Logger provides a stainless-steel construction capable of operating underwater while recording temperatures from −40 °C to 100 °C. Facilities that need multi-parameter monitoring across buildings or laboratories may also implement networked devices such as the RTR-576 Wireless Temperature, Humidity and CO₂ Logger, which can automatically transmit environmental data to cloud storage or local servers for centralized analysis.

Product Q&A

What temperature ranges can the TR4A series data loggers measure?

The temperature range varies by model and sensor configuration. The TR41A includes an internal sensor capable of measuring approximately −40 °C to 80 °C, while the TR42A supports external probes covering about −60 °C to 155 °C. The TR45 model can be used with thermocouple or Pt100 sensors, allowing measurement ranges extending from approximately −199 °C to 1760 °C depending on the sensor type.

How is temperature data retrieved from the logger?

Recorded data is transferred wirelessly using Bluetooth Low Energy to a compatible smartphone or tablet running the T&D Thermo mobile application. Users can download stored measurements, review graphical trends, and configure logging parameters directly from the mobile device.

Can the logged temperature data be stored remotely?

Yes. Once data is collected on the mobile device, it can be uploaded to the T&D WebStorage Service through WiFi or cellular connectivity. This allows organizations to centrally store, review, and share temperature records through a cloud-based platform.

What applications commonly use compact rugged temperature data loggers?

These devices are widely deployed in laboratory research, pharmaceutical storage monitoring, cold-chain verification, environmental studies, and industrial process monitoring where portable data acquisition and reliable temperature documentation are required.

What software tools are available for configuration and reporting?

Two dedicated mobile applications are available. The T&D Thermo application allows users to configure devices, download logged measurements, and view graphical data trends, while the TR4 Report application enables the creation of formatted PDF reports covering selected monitoring periods.

*1: In the case of a 4-wire sensor, one wire will be left unused

*2: Battery life varies depending upon multiple factors including ambient temperature, recording interval, usage of applications, and battery performance. All estimates are based on operations carried out with a new battery and are in no way a guarantee of actual battery life.

*3: Estimated battery life when recording data at an interval of more than 10 seconds and displaying a graph in the app once a day

*4: This is the waterproof capacity of the data logger with the sensor connected. Note that the temperature-humidity sensor is not water resistant. The specifications listed above are subject to change without notice.

Product line Q&A

What kinds of users typically benefit from this product line?

These products are commonly considered by organizations involved in cold-chain documentation, environmental monitoring, museums, storage rooms, facilities management, and validation workflows where users need to compare sensor types, communication methods, and channel configurations. They are generally evaluated by users who want a consistent platform while still being able to match the final model to the exact job.