Water Clock

This amazing, easy to use, clock is powered simply by adding water to the reservoir. This water becomes an electrolyte allowing the metal probes inside reservoir to act like a battery. An excellent demonstration of the conversion of chemical energy to electrical energy.
 
Includes clock frame with LCD display, removable cap, and instructions.
Displays hours, minutes, and date
Features optional alarm, hourly chime, and 12 or 24 hour time format
Instructions included