Products
View all T&D products. Find a logger that suits your measurement needs, your communication environment, and your purpose.
Browse MoreApplication Examples
If you are uncertain about which logger meets your situation; check out examples of how our loggers can be used.
Browse MoreUsage Reports
Customers from various fields choose T&D loggers; here we introduce some of those customers’ real-life stories.
Browse MorePurchasing
We have distributors in over 60 countries to help you with purchasing and offer product support. Find a distributor near you that speaks your language and understands your needs.
Browse MoreSoftware / Apps
We offer free-of-charge downloads for all of our Windows PC compatible software and mobile apps; firmware can also be updated from here.
Browse MoreNews
Here you can find all the latest news and important notices about T&D, our products, including software and firmware updates.
Browse MoreAbout Us
Since 1986, T&D, with its base in Japan, has been at the forefront of data logger evolution. From wireless communication to network communication and IoT; no matter the changes and advancements in loggers, you can trust your data with T&D will never change. The future of your data is good hands with T&D.
Browse MoreSupport
Here you can find answers to FAQs, and downloads for User Manuals and Help. Please use the contact forms here for both general business inquiries and specific product inquiries when experiencing trouble.
Browse MoreT&D is announcing the discontinuation of the Voltage Data Logger VR-71 when current stock runs out.
There is no particular successor model but we recommend using one of the following voltage data loggers: MCR-4V, RTR-505-V/505-VL, TR-55i-V
