Turbidity sensors measure the turbidity (how dirty the water is) in dishwashers,
and can help save energy and water by reducing the length of time a wash cycle need
be on to get the dishes to a set level of cleanliness. i.e. (Lightly soiled dishes
need less wash time than heavily soiled dishes). It works by light being transmitted
through the water between two points, and the strength of that light beam is measured,
(the cleaner the water the stronger the beam.) this information is fed back to the module
which takes the appropriate action. These sensors are usually sited in the or close to the
heater box, and in the water flow.
