FS11 Water Flow Switch for Heat Pump Water Heaters Function and benefits: Paddle style flow switch for reliable flow detection. Provides stable performance and durable operation with tunable flow settings starting from 1 L/min, suitable for a range of water heating systems. Adjustable flow range and pressure tolerance: Withstands up to 1 MPa pressure and has fixed flow settings suitable for specific requirements. Ideal for pool equipment, water meters, and central air conditioning units. Broad application compatibility: Designed for use with water heating systems and related equipment. Operating temperature range 10 to 100 C. Built with nylon material for air resistance. Easy installation and compact design: Space saving FS11 sensor designed for easy integration into existing systems. 100 V working voltage and simple wiring or setup. Specifications at a glance: Model FS11; Voltage 100 V; Flow settings starting at 1 L/min; Pressure tolerance up to 1 MPa; Temperature range 10 to 100 C; Material nylon. Use scenarios: In heat pump water heater systems to detect flow reliably and protect the unit while enabling proper operation. In pool equipment, water meters, and central air conditioning units to monitor and regulate water flow. In systems requiring compatible, reliable flow sensing across various water heating and HVAC configurations.