Desktop Water-powered Calculator

Water powered, 12 digit display calculator for professional or home use.

The latest in environmental design, running on the latest H2O water-powered replaceable battery.

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More information

• Powered by the revolutionary H20 water battery - this patented technology utilises two electrodes made of special alloys, when immersed in water the resulting chemical reaction produces electricity.
• To maintain a constant supply of energy, simply refill the battery as the water evaporates - typically every 2 to 3 months.
• (The battery has a minimum continuous life of 2 years).

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