Desktop Calculator

12 digit large display calculator. For proffesional or home use. Replaceable H2O cell

The new H2O Desktop Calculator from Tango Group is the latest in ecological and environmental design.  Incorporating the revolutionary and patented, H2O powered battery, together with conventional digital technology  the H2O Desktop Calculator offers the user an environmental design solution for a product that is used in every day  ome or office life. This has all been made possible by groundbreaking developments in portable power  technology operated by an inexhaustible resource - “water”. The patented technology utilises two electrodes consisting  of specially formulated alloys, one positive, and the other negative. When immersed in an electrochemical  reaction takes place resulting in the production of electrical energy. 

To maintain a constant supply of energy  simply refill as the evaporates, typically every 2 to 3 months. The H2O battery has a minimum continuous life of at   least 2 years. In addition to this, the H2O  battery (unlike all other conventional batteries) can be stored in its dry  state indefinitely and can be left to dry out at any time  during its life and its life extended indefinitely. water As all  the components of the H2O battery are recyclable, the benefits over traditional batteries are countless.

Every year  billions of conventional dry cell batteries are used, and the recycling of such waste is not only expensive but often  incomplete, resulting in hazardous pollution and  damage to our environment. The H2O is designed and  manufactured for both professional and home use in mind. By just adding you are  providing your product with an endless source of energy. At the end of the H2O battery’s life (indicated by dimming of the display) simply replace  the battery and start all over again. (Replacement water powered batteries are readily available fromTango Group  Limited).

Unlike conventional solar powered calculators the H2O  Desktop Calculator can be used in all light  conditions... no more fading displays at that critical moment. The H2O batteries are easy to refill and can provide   constant power for up to 3 months with just a few drops of water.  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.