No need for a separate power source—these counters are powered by internal batteries that last more than seven years. Often used in areas where power isn’t easy to access, they work well inside machinery or remote monitoring systems. Wire them to a relay, sensor, switch, or other trigger device on the machine performing repeated tasks. The counter receives a signal from the trigger device to track how many times the task has occurred and shows that number on the display.

All can be connected to a separate input, button, or switch to reset the counter to zero directly or at a distance.