Mk2 sensor accuracy in freshwater, chlorine, and salt water?

Is there a document somewhere that talks about the Mk2 or other Garmin watch sensor accuracy in different water types (fresh, chlorine, salt)? Interested in sensor accuracy of most of the onboard sensors like heart rate, O2 Sat, depth, respiration etc. Thanks

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nradov over 2 years ago +1 suggested

I can't imagine it would make a difference for heart rate or respiration. The pulse oximeter isn't used underwater. For depth you have to specifically set the water type to salt or fresh; chlorine doesn…

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0 nradov over 2 years ago

I can't imagine it would make a difference for heart rate or respiration. The pulse oximeter isn't used underwater. For depth you have to specifically set the water type to salt or fresh; chlorine doesn't make a significant difference to water density. The temperature sensor is automatically disabled for Pool Swim activities because chlorine damages the sensor.

www.dcrainmaker.com/.../the-fascinating-reason-why-the-garmin-fr945-fenix-6-no-longer-shows-pool-temperature.html