Your home appliances are protected against limescale build-up and are kept operating effectively with ScaleRx. No power source, batteries, chemicals, or filters are needed. Limescale formation is prevented using ScaleRx's unique Turbulent Galvanic Polarization (TGP) method. ScaleRx proved four times more efficient than the top electronic scale device in side-by-side comparative testing. ScaleRx requires no maintenance and is simple to install.