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See also:
POP Display for Water Powered Clock & Calculator
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Water Calculator & Water Battery
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Water battery
Water Powered Calculator
Think Green. Save the Planet!
Powered by Water! No Batteries Needed!
Easy to fill Water Battery
• 12 Digit Full Function Calculator
• Large easy to read display
• Angled display for easy reading
• Add, multiply, divide, subtract and percent keys
• Digit erase key
• Grand total key
• Long life - refill only when water runs down
• Auto shut off
Excellent 4 color clam shell packageing
Prepack POP Display available- click on link above.
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