Used in a wide range of environments: Whether in water treatment systems, central air conditioning or water-cooled , this SPDT R3/4 threaded paddle flow sensor switch effectively manages fluid flow. Suitable for non- liquids and gases, suitable for a variety of industrial and commercial applications.Precise flow management: The sensor is designed with an adjustment knob that can manually set the flow control value to that the flow rate meets industrial requirements. Stable repetitive action points long-term stable operation of the system without the need for frequent adjustments.Intelligent automatic control: The flow sensor adopts advanced microswitch technology and automatically adjusts when the fluid flow exceeds the set value to the safety and efficiency of the system. SPDT contacts are designed to a circuit simultaneously. and reliable design: with IP54 protection rating, suitable for harsh environments. The contactor of the paddle sensor is designed to last up to 100,000 times, reducing maintenance costs and extending the service life of the equipment.Compatible with multiple fluids: This flow sensor is not limited to water and oil, but can also be used with other non-hazardous or non- fluids. Whether in the chemical, food processing or pharmaceutical industries, they provide accurate flow control. Extensive Use - This flow switch is an automatic elements that controls flow in pipes, which can be used on water treatment system, central air-conditioning, water cooled chiller and relative industriesColour:RedMaterial:Plastic+Metal Package Contents:1 * Liquid Water Oil Flow Sensor Switch3 * Accessories Only the above package content, other products are not included.Note: Light reflection 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.