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They are in the recommended category: Calculators  (4 Merchant-Offers )
"" Water Powered Calculator
H20 Powered 8 Digit School Calculator Another great little product from the H20 team.A newer version of this calculator which is powered completely by water using patented technology from H2O. It comes with a replaceable water battery cell and only needs topping up every once in a while; a few drops of water and away it goes.A good school gift for the kids and sure to raise interest in the science class. Cardboard packaging.1 Year Guarantee -Innovative Energy Products from EcoGadgets-  more Delivery period: refer to Shop · Delivery: See shop
"" Water Powered Desktop Calculator
Revolutionary Water Powered Desktop ... a small amount of electricity. This is a practical and innovative gift, for professional, school or home. The perfect environmentally friendly calculator. · Water Powered · 12 Digit Display · Large Display & Keys · Water Powered Battery Included Not only is the H2O Desktop Calculator environmentally friendly, innovative and ergonomically designed, it has a large 12 digit display and keyboard and offers all the functions demanded by professional users. As all the components ...  more Delivery period: refer to Shop · Delivery: See shop
"" Water Powered Compact Calculator
Revolutionary Water Powered Compact ... professional, school or home. The perfect environmentally friendly calculator. As the components of the H20 water battery are recyclable, the benefits over traditional batteries are countless! 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 ...  more Delivery period: refer to Shop · Delivery: See shop
"" Water Powered Accountants H20 Calculator
Accountants Water Powered CalculatorThis ... general accountant calculations - a great present for someone in the office! Features: *Large display and keys *Replaceable recyclable battery * Only need to refill with water every 2-3 months to maintain a constant supply of energy * Battery has a minimum continuous life of at least 2 years * Can be stored in its dry state indefinitely * Can be left to dry out at any time during its life * Life extended indefinitely Every year billions of conventional dry cell batteries are ...  more Delivery period: refer to Shop · Delivery: See shop
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SHARP EL 331 ERB
SHARP EL 331 ERB
Casio DF 120 TER
Casio DF 120 TER
Texas Instruments TI 84+
Texas Instruments TI 84+
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