... Flow Switch 1.Light weight 2.easy installation 3.long lifetime 4.ROHS and CE approvals. The Water Flow Sensor ... no-load operation. Flow SwitchLight weight ,easy installation ,long lifetime,ROHS and CE approvals. 1. Mass production, competitive ... applied, featuring stable performance and long service time.4. Full nylonstainless steel structure, good stelling performance ,long life ,easy installation. 5 ...