H2O Power Calculator 12 digits showertimer showing one of the measured

showing one of the measured values

Thanks to the integrated dusk sensor

Hose connection thread: Standard G 1/2" (fits most shower hoses)

allowing two compatible devices to be connected at the same time

Various output ports: Offers 2 car cigarette lighter sockets (12-24V DC) and 4 USB ports (5V)

H2O Power Calculator 12 digits showertimer showing one of the measuredCalculate conveniently and in harmony with nature! The H2O desktop calculator is a revolutionary device that requires only clean water to work! Forget about purchasing and disposing of batteries or lighting restrictions for solar calculators. Designed by Tango Group, this 12 digit calculator uses patented H2O water activated battery technology. This is a breakthrough, ecological solution for an everyday product at home and in the office, offering