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Microsecond Counter (230 V, 50/60 Hz) more

Digital counter/timer for measuring duration of motion, transition times, periods, pendulum periods, frequencies, as well as for counting events or Geiger tube pulses. Includes a speaker that can be turned on and off and power supplies for ... more

Inexpensive, compact counter for measuring milliseconds, e.g. in conjunction with the free-fall apparatus (U8400830). Each count is started and stopped by a signal at the input sockets. The device is automatically reset to zero each time it ... more

Inexpensive, compact counter for measuring milliseconds, e.g. in conjunction with the free-fall apparatus (U8400830). Each count is started and stopped by a signal at the input sockets. The device is automatically reset to zero each time it ... more