What's the difference between the two buttons reading Par on the app?

[DankZappa]

…the two selection buttons on the bottom right there.

From what I’ve found, they both do the same thing, no?

[monstermash]

@DankZappa

1st icon, on left, will trigger your Pulse pro to take a light reading and display it in app.
2nd icon, on right, will fetch a light reading triggered by selecting the button on the device itself.

[DankZappa]

Gotcha, thanks.