TR-71Ui USB Connected Temperature Data Logger with IR Connectivity - Tech Instrumentation

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TR-71Ui USB Connected Temperature Data Logger with IR Connectivity

  • $342.40 USD
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The TR-71Ui measures and records two channels of temperature.

The TR-71Ui & 72Ui are USB type data loggers that enables the downloading of recorded data by connecting directly to a PC. Also, the newly added infrared communication function can now be used to collect recorded data from the TR-71Ui/72Ui without a PC.
By using a Data Collector TR-57DCi with infrared function, the collected data can be easily displayed in graph form without physically gathering the loggers, enabling the immediate on-the-spot checking of continually-changing data.
Application Examples
DataLoggers examples
*Performance testing of humidity and heat control in housing
*Managing temperature and humidity in computer server rooms
*For temperature and humidity management in hospitals, museums, and temperature controlled warehouses
*For humidity and temperature management in mushroom cultivation and malt rooms
*Recording temperature and humidity in subways and train cars
TR-71Ui TR-72Ui
Measurement Channel 2 Ch 2 Ch
Measurement Item Temperature Only Temperature
Internal Temperature Sensor -10 to 60 °C
External Temperature Sensor -40 to 110 °C 0 to 50 °C
External Humidity Sensor - 10 to 95%RH
Option Sensor -60 to 155 °C (*1) -40 to 110 °C
Temperature Measurement Accuracy (Standard Sensor) Average ±0.3 °C [-20 to 80 °C]
Average ±0.5 °C [-40 to-20/80 to 110 °C]
Average ±0.3 °C [0 to 50 °C]
Humidity Measurement Accuracy (Standard Sensor) - ±5%RH [at 25 °C 50%RH]
Temperature Measurement Resolution Display 0.1 °C
Humidity Measurement Resolution Display - 1%RH
Temperature Sensor Thermistor
Humidity Sensor - Macromolecular Humidity 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 (*2)
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, alternating display), Recording Status,Battery Life Warning, Amount of Recorded Data, Unit of Measurement
Battery AA Alkaline battery (LR6)
Battery Life About 1year (*3)
Communication Interfaces USB Communication / Serial Communication / Infrared Communication
Infrared Communication IrPHY 1.2 low power
Communication time USB Communication: about 8 seconds
Infrared Communication: about 55 seconds (TR-57DCi)
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-0106 x 2 TR-3100 x 1

(*1): There are two types of temperature sensor for TR-71Ui depending on measurement range.
(*2): One data set consists of readings for all channels in that type of unit.
(*3): Battery life depends upon the measuring environment, recording interval, and quality of the battery being used. When infrared communication function is enabled, battery life may be shortened if the unit is used under the inverter type fluorescent lighting.

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209 reviews

Shipment arrived on time and as ordered.

La Crosse Technologies V10-TH

The La Crosse V10-TH Wireless Weather Station (Model No. C84343) is absolutely wonderful. The setup was easy with the Quick Setup Guide provided with the unit. The packaging contains additional support information with the website and phone number if there are questions. I especially liked the daily high low readings and the color on the unit! Tech Instrumentation provided great communication as to the availability of the product and shipping details. If fact, it arrived one day prior to the estimated delivery date. I would absolutely recommend this product and Tech Instrumentation for anyone looking for an indoor/outdoor weather station!


I needed a replacement as my original sensor no longer worked. This one works fine.

Excellent Customer Service!

I can't way enough about the customer service at Tech Instrumentation. I was looking for a hard to find specialty part, which the manufacturer told me would need to be custom made. After calling and speaking with a representative at Tech Instrumentation, the part was located and order was filled, right over the phone. Delivery was prompt, and instrument is working great. Highly recommended company for lab supplies!

Worked great

Put batteries in and worked great