how to disconnect external heart rate sensor?

on the sensors page you can activate or deactivate the sensors

2154995 said:

I'd like the watch to use it's own pulse rate sensor to measure my pulse rate after I finish the excersize. But I'm not finding a way to tell the watch to not try to use the external sensor, but use the built-in one

In fact it should be enough to stop the activity. The watch uses an external HRM only when in the activity mode. As soon as you stop and save it, it switches back to the internal sensor. I do not have Epix 2, but so it works with any Garmin device I tested.

personally I tend to keep all my sensors as status off, and then manually turn on as required.

where would I find this page?

unfortunately it doesn't. I have a gap in my heart rate measurement graph after the exercise, until some time when it 'gives up' trying to use the external heart rate sensor and uses the built in one

where do you "keep all my sensors as status off, and then manually turn on"?

on the page where you add or remove sensors you can activate or deactivate them