TR-71wf/72wf Firmware Update Tool

This is an update program for the TR-71wf/72wf firmware.


This is an update program for the TR-71wf/72wf firmware.

Compatible ProductsTR-71wf, TR-72wf/72wf-S, TR-72wf-H
VersionVer. 1.12 (November 17, 2020)
File Nameapp_tr71_72wf-firm-112-all-eng.exe
File Size5.4 MB
Operating EnvironmentCompatible OS *1
Microsoft Windows 11 64bit English
Microsoft Windows 10 32/64bit English
CopyrightT&D Corporation
ReplicationCopying to another media is expressly forbidden
*1: For installation, it is necessary to have Administrator (Computer Administrator) rights..

How to Check your TR-71wf/72wf Firmware Version

T&D WebStorage Service

  1. From the [Devices] menu, open the settings window by clicking the [Settings] button for the desired device.
  2. Read off the "Firmware" version next to the "Serial Number" located at the top of the window.


  1. Open T&D software "TR7 for Windows" and connect your device via USB to the computer.
  2. Read off the "Firmware Version" value located at the lower left on the screen.

Mobile Device

  1. Open T&D application “T&D Thermo” and click the menu in the upper left corner. Select [WLAN Direct Comm.] and carry out direct communication with your device.
  2. From the device settings screen, select [Settings Table] and read off the “Firmware Version” value.

Firmware Update Procedure

  • All recorded data will be deleted by updating the firmware. Please make sure to download all necessary data before update.
  • The firmware update requires a USB connection between a device and a PC.

Before connecting a USB cable, make sure that the PC has the USB device driver installed. (By installing the application "TR7 for Windows", the USB device driver will also be installed.)

  1. Execute the downloaded "TR-71wf/72wf Firmware Update Tool".
  2. Using a USB cable, connect only one device to the computer.
  3. Click [Update] to start the update process.
  4. Follow the instructions on the screen to update the firmware.

The logger LCD will display [LoAd] during the update, which should take only a few minutes to complete. If the firmware is updated successfully, [LXXX] will appear on the LCD screen when the power is turned on.

In the case when the LCD freezes with the [LoAd] message, please try the following.

  1. Disconnect the USB cable and remove the batteries from the device. After the LCD screen goes blank, replace the batteries and try the firmware update again.
  2. If your PC has more than one USB port, connect the USB cable to a different port.
  3. Reboot the computer.

Revision History

Ver. 1.12 November 17, 2020

  • Fixed a problem that occurred after replacing batteries during a sensor error status condition, where a sensor error notification could be incorrectly sent when an upper or lower limit warning was transmitted.

Ver. 1.11 June 17, 2020

  • Fixed a problem that occurred when communication with the sensor failed due to external noise, where the previous measurement was displayed.

Ver. 1.10 September 08, 2017

  • Fixed a problem that caused a warning not to be detected in the following conditions:
    • When operations such as recording start or warning setting changes are performed on the logger whose battery power at that time was too low to send a warning.
    • When operations such as recording start or warning setting changes are performed on the logger on which a warning occurred while in AP mode.
  • When the logger enters sleep mode (“SLP” display on LCD), the operation log is now only recorded and displayed once.
  • When the battery runs low and automatic data upload stops, the error log is now only recorded and displayed once.

Ver. 1.09 July 28, 2017

  • Fixed a problem that occurred when data transmission failed due to wireless network connection error, where the error indication was not displayed correctly on the logger\'s LCD screen and in the log file.
  • Fixed a problem that occurred on some Android devices without SIM cards, where direct wireless communication with the logger failed if the wireless network was heavily used.

Ver. 1.08 November 22, 2016

  • Fixed a problem where the measurement value was not displayed in the warning email when a warning occurred before changes made via T&D WebStorage Service to the warning settings were applied to the logger.
  • Improved the correction accuracy when receiving time information from the server.

Ver. 1.07 February 12, 2016

  • Fixed a problem that caused the Access Point 3 set in the Wireless LAN Settings not to function properly as an access point.

Ver. 1.06 August 24, 2015

  • When a warning email can not be issued due to communication failures or other issues, the unsent warning email will now be sent at the time of the next transmission of data.
  • Fixed a problem where a warning email might be sent in the first transmission after changing the warning email setting to OFF.
  • Fixed a problem that occurred when changing the Wireless LAN Settings from \"DHCP\" to a \"static IP address\" for auto data upload, where data transmission sometimes failed.
  • Fixed a problem where it would take time for the new settings to be applied after changing the auto-upload interval via T&D WebStorage Service.
  • Fixed a problem that occurred when a correct network name and an incorrect password have been entered in the Wireless LAN Settings, where the user did not receive the expected error code (\"Cannot find Access Point\" error).

Ver. 1.05 April 16, 2015

  • Added support for proxy server.
  • Added support for "T&D Data Server".

Ver. 1.04 April 07, 2014

  • Fixed a problem that occurred when turning off the TR-72wf/72wf-H, the device would freeze with [OFF] displayed on the LCD.
  • Updated so that the device resumes recording automatically by replacing the batteries if the batteries run out and the LCD display goes blank during a recording session.

Ver. 1.02 October 01, 2013

  • First Release

User Agreement


  1. Although T&D Corporation has carried out operational tests on TR-71wf/72wf Firmware Update Tool, hereafter referred to as "the software", we cannot guarantee that all operations will work properly under all conditions.
  2. T&D Corporation shall not accept any responsibility for any damage whether direct or indirect that results from the usage of the software.
  3. Specifications of the software may be subject to change and service may be terminated without advance notice to the user. In such a case T&D Corporation shall not be responsible for any damages whether direct or indirect from the inability to use the software.
  4. T&D Corporation has no obligation to correct any defects found in the software.


  1. All copyrights for the software, including all of the programs and all related documents, are the sole property of T&D Corporation.
  2. The software is for use free of charge. Redistribution is permitted as long as it is to others for non-profit. In this case, all terms and conditions as written in the above disclaimers automatically transfer and hold true and valid for the party to which the program was redistributed. Please note that if you wish to commercially redistribute the program please contact your local distributor or T&D representative.
  3. The reprinting or redistribution for commercial purposes whether in part or in whole, in magazines or as a part of any product is strictly forbidden without the expressed consent of T&D Corporation. Any inquiries concerning commercial redistribution should be directed to the Sales Department of T&D Corporation.
  4. Please do not attempt to make any changes or modifications to the software.
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