Key Features: -Provides precise, non-contact distance measurements within a 2 cm to 3 m range -Ultrasonic measurements work in any lighting condition, making this a good choice to supplement infrared object detectors -Simple pulse in/pulse out communication requires just one --I/O pin -Burst indicator LED shows measurement in progress -3-pin header makes it easy to connect to a development board, directly or with an extension cable, no soldering required