Are you a 20 minute shower person? Do you even know how long you stay in the shower running the heated water? How much water is consumed during your shower? Well, now there’s a way to find out.

The Sprav meter attaches to any shower head. It’s not a water conservation filter but rather a guilter. The concept is pretty simple. Green light means you’re not a water hog. Go into yellow and maybe your showers are a bit too long. Red light means “WTF, dude?”. If you are consistently a red light shower person, then it may be time for you to change your ways unless you’re a very filthy person.

Check out the Sprav Kickstarter campaign below.