Used for water heaters, automatic water dispensers, good flow monitor devices.Durable and practical. Stable and safe.High temperature, low water pressure start.Detect whether the water flow line and traffic is to meet the requirements, at the same time by switching electrical contacts provide a signal output ON or OFF state.Equipment system by detecting the presence of a signal or a control current to pass therethrough (flow switch electrical contacts pass, off state) on the switch to determine the working status of the piping system.Product Name : Water Flow Sensor SwitchMax Contact Rating : 120WWater Temperature Range : 1 - 100 Degree CelsiusCurrent Load : 1AMale thread (fit pipe dia): OD: 20mm, ID: approx12mmColour:yellowMaterial:Metal + plasticPackage Contents:1 * water flow sensor switchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.