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 direct connection to photo gate or a Geiger-Müller counter.

• A fixed counting period ( for events) can be programmed in a range from 0,1 ms to 99999 s
• Counter events (e.g. start or stop) can either be triggered by a signal to the input sockets or manually via switches
• Frequency range: 1 to 100 kHz, where voltage >1,5 V