Our Flow switch set is an essential safety device for your swimming pool. It prevents the pump or salt electrolysis system from reacting to a measurement without proper flow, preventing damage and ensuring proper function. The flow switch is designed to detect if there is a flow through the measuring and addition system loop, providing an added layer of protection for your pool. We standard include this item in all the  Ferrosalt duo modules. Trust in the reliability and effectiveness of our flow switch set for a worry-free swimming experience.