- Sends a shutdown signal to the main water valve when a leak or abnormal flow is detected
- * The flow sensor detects abnormal flow rates of 2L / min (¾ inch version) and 4L / min (1 inch version).
In the box
- 1 FS4220 or FS4221 flow sensor
- Installation guide – French version
- Installation guide – English version
Detects invisible water leaks * that can occur in the event of a broken pipe in walls and ceilings