The twin emitter/receiver gates are set 1cm apart for speed measurement. A mounting rod alllows the unit to be fixed to a retort stand. This unit is a standalone device and does not need connection to a computer or timer.
LCD 5 digits
Accuracy 0.1 ms for recoding, 1 ms for display
Display ooptions: s, cm/s, m/s, km/h
Power: 2 x 1.5 V AAA batteries (not included)
Use with trolley systems
and air tracks