This clock outputs a simple Square wave pulse.  The rising edge of the wave (going from 0 to 1) is the “tick” of the clock.  Because it is a square wave, it can also be used as a gate signal.

The Frequency knob (unlabelled) works from 0-1.  Press a multiplier button to adjust the frequency range.  The maximum frequency is 10,000Hz.  The Frequency displayed is rounded to the nearest hundredth.

The toggle button underneath the knob turns the clock on and off.

The S input is a hard sync.

This module has a digital output, meaning its output is either 0 (off, low, no) or 1 (high, on, yes).