The Evok shower head is a conceptual design meant to reduce the amount of water wasted during a shower. It was created by the Brazilian design duo Renato Saes and Ricardo Roprusan. The two designers aim to cut waste water by limiting when water comes out of the shower. This is done by installing a sensor into the center of the Evok shower head. When the sensor fails to detect a physical presence, the water is turned off.
The sensor for the Evok has a wide radius, so you won't have to worry about it turning off when you turn to grab the shampoo. In addition to its sensor, the shower also has touch controls for temperature and a temperature display. Conserving water is one of the easiest things to do, but sometimes people need a push from designers to do so. Here's hoping more showers in the future come equipped with sensors like the Evok shower head.