There are a few obstacle detectors and rangefinders on the market, but are usually either very expensive or don't work

great outside (I am looking  at you Kinect). We decided to try to make a product that it is cheap and rugged enough to be used outdoors.

Here are some parameters:

• detectable range: 200 mm to 1500 mm (7 to 60 inches )
  7.5 degrees angular resolution
  2 scans per second
  180 degrees view
  easy readable output data in text format
  easy interface with other boards it comes pre calibrated
  USB interface power and data

It is intended more for terestrial robots (is a bit slower than the laser rangefinders) .

Here is the link