H20 Desktop Calculator

RRP: £14.99 you save £4.86   £10.13   Buy Now

Water powered with 12 digit display for office, school or home use

How it works: There are 2 special alloys of positive and negative metal electrodes in the device. When a few drops of water are added, the positive and negative ions will begin to transport currents via the water to each electrode, causing at the same time the electricity current to go through the load.

Kaieteur are proud to donate a percentage of sales into a tree planting fund which aids local and international tree planting projects