What does this mean?

Question

I haven’t ever noticed that 2 in the top left corner. What is that? It came up by itself when I turned my doppler on. 
I had no trouble finding my baby’s heartbeat today but for some reason the numbers were crazy!!! Went from 26, 166, 94, 60, 190 bpm. Like wtf? I know the numbers on the doppler aren’t necessarily accurate but I’ve never had the numbers go crazy like that until today, coincidentally when that weird number 2 showed up in the corner of my screen. 
Did I press something on my doppler by accident?

Answer

That’s the mode selection number. Yours is in mode 2. If you still have your instruction pamphlet it’ll tell you the difference between all 3 modes.

Answer

Don't rely on the number at all, the little heart icon shows whether it picked up the beat or not and you'll notice if you watch it misses many of them. Instead set a 10sec timer, count the beats in 10 sec and then multiply by 6. It'll be more accurate than the  number displayed regardless of mode.

Answer

Click that button that has the rectangle with lines on it, it will change to modes 1, 2, 3. 
1 is real time bpm, that’s the most common mode to use. 
2 is average bpm over 8 beats I think (something like that, it doesn’t work well from my experience).
3 you have to click the light button on and off to record bpm and get an average. It’s all in the instructions lol

What does this mean?

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