The CALCLEAR units now have prewound (patented) pipes of varying diameter and length where the transmission of the EMF Electromagnetic Field occurs.
It is not dangerous but a proprietary sine wave programme ( like a sound wave ).It is connected to our controller which requires a power outlet to transmit the
Signals. These will vary according to power needs and water hardness.
The length and diameter of the inserted pipe will relate to your pipe and water hardness. ( see chart comparing units )