Executive Water Clock at Educational Innovations


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Executive Water Clock
TIM-855

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$16.95 ea.

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This beautiful, digital clock is a great conversation piece! Using any electrolytic solution: salt water, soda, vinegar etc, it is powered by an oxidation/reduction reaction at the copper and zinc electrodes. This sealed unit produces about 3 volts and will run for well over a year. Great conversation piece for your classroom! Clock measures 10 x 10 cm (4" x 4") with a 3 x 3 cm (1.2" x 1.2") display.

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