Measure reaction times with wireless response boxes from Cambridge Research Systems, Ltd.  Featuring a new high power, infra red wireless transmitter combined with robust push buttons and mounted in a light weight handheld enclosure makes it simple to capture behavioral responses from your observers.

Chose from one of the two boxes below.  The designs are compatible with the wireless receivers inside ViSaGe and Bits# and generate video synchronous timestamp events using their high resolution reaction time clocks.