discontinuity

With the stethesope scope you can very quickly check the entire cabinet. With an accelerometer, you would need to attach, measure, move, measure, many, many times.

Your suggestted technique, if you had a real-time readout (something like your iPhone connected to iMac) you could get an analytic readout as you move the tip around so time taken would be closer to the stethescope than the accelerometer.

dave