Parallax has introduced the Laser Range Finder.
“Designed in conjunction with Grand Idea Studio, the Parallax Laser Range Finder (LRF) Module is a distance-measuring instrument that uses laser technology to calculate the distance to a targeted object. The design uses a Propeller processor, CMOS camera, and laser diode to create a low-cost laser range finder. Distance to a targeted object is calculated by optical triangulation using simple trigonometry between the centroid of laser light, camera, and object.”
It operates on 5 VDC at 150 ma and has a 4-pin (0.1″ spacing) header for interfacing power, ground, and TTL-level serial IO.
The LRF is Parallax item #28044 and lists for $129.99.