PHOTOGATE TIMER: Photogate pair
Comprises a very versatile digital photogate timer, accurate to 0.0005 seconds, size 150 x 150 60 mm with 9V battery included.
Two photogates with thumb screw clamps for easy positioning and connecting leads. Photogate opening size: 650 mm. Instructions supplied.
Has five timing modes:
[mode 1] Interval mode which measures beam interruption.
[mode 2] Frequency mode which measures frequency of regular interruptions.
[mode 3] Period mode which measures the time of the first and third interruption.
[mode 4] Count mode which keeps track of the number of times the photogate is interrupted. (for pendulum oscillations)
[mode 5] The timer can also be used as a stopwatch.