TR-75wf Firmware Update Tool

This is an update program for the TR-75wf firmware.


This is an update program for the TR-75wf firmware.

Compatible ProductsTR-75wf
VersionVer. 1.04 (April 11, 2018)
File Nameapp_tr75wf-firm-104-all-eng.exe
File Size7.25 MB
Operating EnvironmentCompatible OS *1
Microsoft Windows 11 64bit English
Microsoft Windows 10 32/64bit English
Microsoft Windows 8 32/64bit English
Microsoft Windows 7 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-75wf 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.
  • The XXX represents the version number of the firmware. Please read using the number of the appropriate version.

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. Connect the device via USB to the computer.
  2. Open the downloaded "TR-75wf Firmware Update Tool".
  3. Follow the instructions on the screen to update the firmware.

If the firmware is updated successfully, [LXXX] will appear on the LCD screen when the power is turned on.

Revision History

Ver. 1.04 April 11, 2018

  • Fixed a problem that caused the logger to display and record the internal temperature for cold junction compensation instead of the actual sensor measurement.

Ver. 1.03 December 19, 2017

  • Fixed an issue where temperature measurement occasionally did not automatically start upon turning on the logger.

Ver. 1.02 September 08, 2017

  • 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.
  • 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. 1.01 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.

User Agreement


  1. Although T&D Corporation has carried out operational tests on T&D Graph, 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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