TandD's new generation of Bluetooth temperature recorder. You can perform device settings, data downloads, browse graphics、data lists and other information on the smart phone/tablet. And the collected data can be uploaded to the free cloud service "Web Storage" then the graphics can be browsed and analyzed by computer. The TR-4 series provides two dedicated APP mobile software, "Thermo REC" and "Thermo Storage" applications. The data can be browsed on the mobile phone or the mobile phone can be used as a repeater. The data is collected by the mobile phone or mobile device and recorder, and then forwarded to the cloud platform for other users to browse.