T&D TR-73U Multi-Parameter Data Logger for Temperature, RH and Barometric Pressure Tracking
- Barometric-Pressure: 750 to 1100 hPa
- Temperature: 0 to 50°C
- Humidity: 10 to 95%RH
Temperature Humidity Pressure Logger for Data — Temperature and humidity monitoring with recorded data
This instrument fits facility teams, storage operators, laboratories, and compliance users that need a practical way to capture data during building a reliable record of environmental conditions for quality, traceability, and troubleshooting.
The TR‑73U is a compact, three‑channel USB data logger that simultaneously tracks temperature, humidity and barometric pressure. Designed for long‑term environmental monitoring, this unit combines low power consumption, straightforward USB connectivity and intuitive software to support a wide range of applications in research, industry and facilities management. Its inclusion in the T&D Thermo Recorder family reflects a longstanding reputation for reliable environmental data recording hardware.
Product Research, Reviews & Use Cases
Independent specifications from distributors confirm the TR‑73U’s ability to record up to 8,000 sets of temperature (0–50 °C), humidity (10–95 %RH) and barometric pressure (750–1100 hPa) readings, with USB data transfer and approximately 10 months of operation from a single AA battery. The design has been tested for low electromagnetic emission in accordance with RTCA DO‑160E standards, ensuring compliance with certain aerospace emission recommendations. Users across industrial and laboratory settings highlight the device’s reliability for long‑term storage monitoring and environmental trend analysis, with PC software support for graphing and report export. General feedback notes that it serves effectively in warehouses, clean rooms and controlled environments where stable environmental measurements are essential.
Key Product Summary The TR‑73U package includes the data logger unit itself, required sensor(s) and corresponding PC software. After plugging the unit into a Windows‑based PC via USB and launching the supplied software, data recording can begin quickly and without complex setup. With its three measurement channels, this model captures environmental conditions comprehensively and stores them internally for analysis or export.
Main Features & Capabilities
The TR‑73U integrates temperature, humidity and barometric pressure measurement into one device. Thanks to its compact design and USB interface, users can deploy it easily in a variety of settings. Data can be viewed in graphs and exported in CSV format using T&D’s PC software, facilitating further analysis or reporting.
USB Connectivity and Software
This unit connects directly to a computer’s USB port for simple data retrieval. The included software allows the user to view current measurements, download recorded logs and analyze environmental trends. This streamlines workflows for quality control, research studies, environmental monitoring and more.
Reliability and Power Efficiency
Designed for low energy usage, the TR‑73U can operate for roughly ten months on a single AA alkaline battery under typical conditions. A built‑in display offers real‑time feedback on measurements, battery status and recording conditions.
Technical Q&A
What environmental conditions can the TR‑73U measure?
The TR‑73U simultaneously records temperature, humidity and barometric pressure. Standard ranges are approximately 0–50 °C for temperature, 10–95 %RH for humidity and 750–1100 hPa for barometric pressure.
How is data downloaded from the TR‑73U?
Data is downloaded by connecting the logger to a computer via USB and using the included T&D software to retrieve logs, view graphs and export files.
How long does the battery last?
Under typical use, a single AA alkaline battery can power the unit for up to about 10 months, depending on conditions and recording interval settings.
Can this device be used for long‑term tracking?
Yes. With a logging capacity of up to 8,000 sets of readings and configurable recording intervals (from 1 second to 60 minutes), the TR‑73U is suitable for long‑term environmental monitoring applications.
When is data logging especially valuable?
Logging is valuable when trends matter more than a single spot reading, such as curing history, storage conditions, verification records, or alarm-driven incident response.
Who is this best suited for?
Facility teams, storage operators, laboratories, and compliance users will get the most value when they need repeatable measurements plus a record they can review, export, or act on later.
Because it combines Barometric-Pressure: 750 to 1100 hPa, Temperature: 0 to 50°C, Humidity: 10 to 95%RH, this product is a strong fit for temperature and humidity monitoring with recorded data where documentation and repeatability are important.
| Measurement Item | Temperature | Humidity | Barometric Pressure |
|---|---|---|---|
| Measurement Channel | 1 Ch | 1 Ch | 1 Ch |
| Internal Temperature Sensor | -10 to 60°C | – | 750 to 1100 hPa |
| External Sensor | 0 to 50°C | 10 to 95%RH | 750 to 1100 hPa |
| Option Sensor | -40 to 110°C | – | 750 to 1100 hPa |
| Measurement Accuracy | Average ±0.3°C(0 to 50°C) | ±5%RH (At 25°C 50%RH) | ±1.5hPa |
| Measurement Resolution Display | 0.1°C | 1%RH | 0.1hPa |
| Sensor | Thermistor | Macromolecular Humidity Sensor | Barometric Pressure Sensor |
| Recording Interval | 1,2,5,10,15,20,30 sec./ 1,2,5,10,15,20,30,60 min./ Total of 15 choices | ||
| Logging Capacity | 8,000 data sets (*1) | ||
| Recording Method | Endless (Overwrite from the oldest data when recording capacity is full) One time Method (Stop recording when recording capacity is full) | ||
| LCD Display | Measurements (Ch1 only, Ch2 only, Ch3 only,alternating display),Recording Status,Battery Life Warning, Amount of Recorded Data, Unit of Measurement | ||
| Battery | AA Alkaline battery (LR6) | ||
| Battery Life | About 10month (*2) | ||
| Interface | USB Communication | ||
| USB Communication time | When downloading 1 unit at full logging capacity: about 11 sec. | ||
| Dimentions | H55mm x W78mm x D18mm | ||
| Weight | About 62g (Including AA alkaline batteries) | ||
| Operating Environment for Main Unit | Temperature: -10 to 60°C Humidity: under 90%RH (without condensation) | ||
| Attached Sensors | TR-3100 x 1 | ||
| Price | $USD 348.00 |
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