T&D TR-55i-Pt Data Logger for Precision Temperature Measurement with Platinum RTD Sensor

Product Overview

The is a rugged and compact environmental monitoring device designed to measure, record, and analyse three key atmospheric parameters: temperature, humidity, and barometric pressure. Built with ease of use in mind, this USB‑connectable recorder is ideal for applications ranging from warehouse storage to cleanroom pressure tracking.

Scientific and industry context: Multi‑channel data loggers like the TR‑73U are commonly used in scientific research and industrial environments to monitor environmental stability, verify compliance with ISO and ASTM standards for storage conditions, and support quality assurance protocols. Recorded data can be graphically analysed using free Windows software, helping research teams and facility managers identify trends and deviations over time.

Customer and peer feedback: Users report dependable battery life and reliable simultaneous recording of multiple data streams, making this model a trusted choice in logistics, laboratories, cold chain monitoring, and controlled environment applications. Many reviewers appreciate the intuitive USB data transfer and robust data storage capacity.

Popular applications: This logger is frequently used in pharmaceuticals, food storage, agricultural research, HVAC performance checks, and museum environment control to ensure consistent atmospheric conditions. General feedback from industry peers highlights its compact form factor and long battery life as significant advantages.

Key Features

Multi‑parameter Monitoring
This device captures temperature, relative humidity, and barometric pressure simultaneously, delivering comprehensive environmental insight in a single unit. 

Easy USB Connectivity
Connect the unit directly via USB to your Windows PC to download and view data with included software. Setup and data retrieval require only basic steps, making operation straightforward for both technical and non‑technical users. 

Extended Recording Capacity
Each channel stores up to 8,000 measurements, allowing long term monitoring without frequent data downloads. At longer intervals, continuous recording can extend for many months. 

Low Power Design
Powered by a single AA alkaline battery, the TR‑73U is engineered for low power consumption, operating for up to approximately 10 months on one battery under typical conditions. 

Measurement Specifications

Temperature Range: 0 °C to 50 °C (expandable to ‑40 °C to 110 °C with optional sensor)

Humidity Range: 10 % to 95 % RH 

Barometric Pressure Range: 750 to 1100 hPa 

Performance Details

Resolution: 0.1 °C, 1 % RH, 0.1 hPa 

Accuracy: ±0.3 °C (temperature), ±5 % RH (humidity), ±1.5 hPa (pressure)

Selectable Recording Intervals: from 1 second to 60 minutes 

Package Contents

The all‑in‑one package includes the data logger unit, temperature/humidity sensor, USB cable, software, and user manual. Simply connect the logger to a PC to begin collecting and downloading environmental data. 

Applications and Usage

This data logger is commonly used for continuous environmental monitoring in settings such as cold storage rooms, laboratories, archives, and transport vehicles. Professionals value its compact size for unobtrusive placement, and long battery life for minimal maintenance. It can also be integrated into compliance tracking workflows for quality control and regulatory reporting.

Q&A

What software is required to view the logged data?

Data is viewed and analysed with the included Windows software “T&D Recorder for Windows” and “T&D Graph,” which allow graphical and table formats for downloaded measurements. 

Can multiple units be connected and logged simultaneously?

Yes, you can connect more than one TR‑73U unit to a PC at once to download data from multiple loggers. 

How long will the battery last under normal use?

The unit is designed to operate for approximately 10 months on a single AA alkaline battery, depending on environment and logging interval.