This is an update to my last post.
The limitations of the Bosch system are covered here: Transferring measurements from Bosch to SketchUp in dwg? - #2 by db11. The main problem is that it only exports in non CAD formats.
There are apps like MagicPlan that seem to bridge the gap by allowing you to use almost any Bluetooth enabled measuring device to create floor plans. But you may have to be doing it quite a lot to justify the monthly subscription.
