The TF02 Lidar from Benewake is a laser rangefinder capable of 22m in range.  Unlike other Lidar rangefinders on the market, the TF02 ships in a rugged enclosure making this unit IP65 certified so you dont need to worry about dust or water damaging the lidar.  The TF02 outputs centimeter accurate distance readings at 100Hz and can work in bright conditions as high as 100k Lux.  All this in a package weighing less than 50g.

Furthermore with direct support for many autopilo systems the TF02 is ideal for use as a altitude ranging, or terrain following Lidar unit on your drone.  Currently the TF02 is supported by Pixhawk systems (ardupilot/arducopter) and other such as TopXGun, FFY Technology, aiAero, DAISCH.  Other applications include machine control and other safety sensors and distance measuring systems.

Key Features

• Range of up to 22m outdoors
• Fully enclosed IP65 unit
• Fast measurements up to 100Hz that are centemeter accurate
• Works under high brightness condisitons up to 100k Lux
• Lightweight Lidar module at under 50g

Datasheet

• DE Lidar TF02 Datasheet