Wasting water or energy is not a wise idea. But many of us do so unintentionally. The amphiro b1 happens to be a smart meter that helps you save energy while taking a shower. The device shows you temperature, used water, and more. It pairs with your smartphone to help you track your real-time energy consumption and historical trends.
The amphiro b1 is easy to install and does not require you to hire a plumber. The device never tells you when to stop your shower but gives you an idea when you should. It will have an open API for developers. Did we mention that the device is self-powered? You can find it on Kickstarter.