The YFS401 flow sensor provides precise liquid flow measurement from 0.36 L/min for coffee machines, water heaters, purifiers and beverage systems, delivering reliable data for operation and quality control in commercial or industrial settings. Function and measurement: monitors 0.36 L/min with Hall effect technology; plastic valve body and water flow rotor assembly. Power and compatibility: suitable for DC 518 V systems; current draw less than or equal to 15 mA at 5 V; easy integration into water management equipment. Build and durability: impeller with stainless steel shaft; even load distribution reduces wear and extends life; operates up to 80 C and 3590% RH noncondensing. Performance and storage: withstands up to 1.75 MPa pressure; operates on 3.5512 V DC; storage 25 C to 80 C; 2595% RH. Applications: ideal for coffee machines to ensure consistent brew; beverage dispensers and home/commercial water purifiers; industrial water handling and process lines.