Anti-Scald Safety Device, prevents water from reaching scalding temperature for added safety, IPX5 Splash Proof, designed and built with an IPX5 rating that protects the internal circuits from splashing water., Energy and Water Saving, save on electricity bill as it only heats up the amount of water used as you shower. You can also save on water bills with the 3-in-1 stop valve which allows you to reduce the amount of incoming water flow