- Assembled Digital Clock with HH : MM : SS Display
- Includes a circuit diagram for understanding how the clock works
- To set up the clock, use a small Phillips screwdriver to open the terminal block and insert the red wire to the "+" side and the black wire to the "–" side, then tighten the screws to secure the wires in place.
- Requires one 9V battery for operation. One CR2032 button cell battery can also be used as a backup to save the time when replacing the main battery. Batteries not included.