Smart apnea has 6 depth alarms which is useless because they sound the same. How can I tell if it's the 5th or 6th.. So most people probably only use 3. To make it more confuse to user. Time alarm, speed alarm, all alarm sound the same. Who use those anyway, what a gimmick, not to mention the drinking water alarm.
with firmware 2.0 alarms have different accoustics:
depth=3 short beeps
time=2 long beeps
speed=cont beeping
Hower all depth alarms seem to sound the same
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