My HRMs have stopped pairing with connect and my iPhone, I have changed batteries to no avail…
My HRMs have stopped pairing with connect and my iPhone, I have changed batteries to no avail…
Ok. The HRM-Tri can't pair with your phone or Connect. It only works with a watch or bike computer.
It looks like the 830 comes bundled with a HRM-Dual which also got bluetooth so it can connect to your phone but not Garmin Connect since Connect doesn't support any other HRMs than HRM-Pro. You need to use some other app like Strava och Zwift for that.
Does it work to pair them with your 830?
If you are using ANT+ it should work to use the same HRM with multiple devices at the same time. If you are using bluetooth for both or bluetooth for one and ANT+ for one it might have some issues. I don't know how and if that will work.