EFS Flow switch is used to perceive the flow in pipes. It detects the movement of liquids in the pipe and informs whether it is fluid or not. It provides flow information at high reliability in devices such as water heater and heater without spending energy. It can be mounted horizontally or vertically. Set value in increasing flow: 0.6… 1.2 lt/min or 1.5… 2.5 lt/min, the set group for water is set as factory defaults. Set value can be made by rotating the washer inside the body within the range determined by the user.