Tango Water Powered Calculator

The Water Powered Calculator is an environmentally friendly way of crunching numbers. By refilling w

The Water Powered Calculator is an environmentally friendly way of crunching numbers. By refilling when the water evaporates, youll never need to buy batteries again. Technical specifications: The battery concept is simulated by two electrodes with specifically formulated alloys, one positive one negative. As soon as water comes in contact with with both electrodes, an electrochemical reaction takes place, producing energy. The system has a minimum continuous life of 2 years.

The CompareStorePrices.co.uk device is a registered trademark of Advanced System Technologies Limited.
All other trademarks and devices are the property of their respective owners.

We use browser cookies to personalize content and Ads. To use our site, you must agree to our Privacy Policy.

By clicking 'AGREE' you give consent for:
The collection, sharing, and use of personal data for personalization of ads.
Google Amazon and partners to store and use cookies to provide personalised ads.

For a full list of Ad providers please see our Privacy Policy.