Detects invisible leaks* that can occur when pipes break in walls and ceilings.
Sends a closure signal to the main water valve when a leak or abnormal flow is detected.
*The flow sensor detects abnormal flow rates of 2L/min (3/4 inch version) 4L/min (1 inch version)
Choose to close the main water valve immediately or be alerted when an abnormal flow ** is sensed.
Select the duration of abnormal flow tolerated before the alert is triggered. (e.g.: filling a swimming pool, watering the lawn)
** If no action is taken after receiving such an alert, the valve will close to prevent potential damage
View your water consumption in real-time thanks to the consumption graphs in Neviweb.
FS4220 : 2-45 L/Min
FS4221 : 4-45 L/Min
Stainless steel 304, lead-free
Compliant to ANSI B120.1
Length: 60 mm (2.36 in)
Sensor diameter: ¾ in NPT x ¾ in NPT
Length: 66 mm (2.60 in)
Sensor diameter: 1 in NPT x 1 in NPT