MM640g or MM630g
If not already set up then download 600SeriesAndroidUploader and follow instructions on Nightscout.
In 600 Series Uploader go to Settings > Send to xDrip and select ON (tick).

Select MM640g in Configuration → BG Source.
If not already set up then download 600SeriesAndroidUploader and follow instructions on Nightscout.
In 600 Series Uploader go to Settings > Send to xDrip and select ON (tick).

Select MM640g in Configuration → BG Source.