This app allows to connect over Bluettooth 4.0 with the UNI-T UT61E multimeter. It works with a common bluetooth module inside the case, simply powered by the regulated 3.3V and direct connection to the serial port of the chipset, like described here:
https://blog.ja-ke.tech

Feature and usage overview 1.0: https://blog.ja-ke.tech
Update 1.1: https://blog.ja-ke.tech
Update 1.2: https://blog.ja-ke.tech
Update 1.3: https://blog.ja-ke.tech
Update 1.4: https://blog.ja-ke.tech

Note: The location permission is required to allow scanning for Bluetooth devices, the app does not use location data in any way.

Source code is available here: GitHub

This is just a hobby project, I am in no way affiliated with UNI-T.

If you experience crashes, have found other issues, got enhancement ideas, etc... please create an issue on GitHub or feel free to write me an e-mail.