iOS range of accelerometer?

[1458279]

I've been playing with an app that show the accelerometer readout. I noticed that when I shake the device as hard as I can, it only reads a max of 2.0

I guess this is 2.0 G forces or something. It hit's 2.0 no matter how hard I move it.

I'm digging into the code now, and looking to show the graph in greater detail, but was just wondering if there is a limit to what the accelerometer will read or is there a range setting?

 

[chown33]

What do the accelerometer API docs say?

I'm certain the accelerometer chip has an upper limit, but that may differ from the API's limit.

In any case, this seems like the kind of question easily answered with a little googling or RTFM'ing.