EcoPower self-generating hydropower sensor

Toto's EcoPower self-generating hydropower sensor generates its owns electricity each time water flows over its internal turbine. The electrical energy is then stored in EcoPower's rechargeable battery housed within the faucet. Operating in conjunction with the internal turbine, the rechargeable battery has a 10-year life span. EcoPower is available in both standard and gooseneck styles.