App v4.17.5 and firmware v5.52 adds Manual Sync mode to Metr Pro CAN with SD card.
This option allows constant recording to SD card, even when Metr app is opened and realtime data is streaming over BLE.
To enable it, long press on status area or click on blue gear in Settings, find the switch Manual Sync:
When Manual Sync is ON you won’t be able to manually start records. Records will start and stop automatically based on Settings → Records → Start/Pause/Stop delay. When you navigate to Records tab, you will see “Sync” button. When clicked, active record (if any) on SD card will be stopped and all records synced over BLE.
