Features: The YF S201 Water flows sensors ensures precise flows measurement using Hall effect technology, delivering stable data for applications demanding strict accuracy and stability. Built with heat resistant (80°C ) plastic metal mixing construction and a G1/2 interfaces, it offer erosion resistance and seamless compatibility with water purification systems and heating appliances. Perfect for HVAC technicians, appliance manufacturers, and maintenance professional requiring strong flows monitoring solution in water treatments or temperature controlled environments. Optimizes performances in water heaters, beverage dispensers, and industrial equipment where real time flows tracking and temperature flexibility are critical. Combines rapid response to flows variations with energy efficient operate , making it ideal for prolonged use in residential, commercial, and industrial water management systems. Specifications: Component : Plastic + Metal Size: 61.9x35.8x34.4mm component : plastic+metal 61.9x35.8x34.4mm Minimum rate working electric : DC4.5 5V-24V greatest operating current: 15 ( 5V) Operating electric ranges: 5～18 V Load capacity: ≤10 ( 5V) Use temperature ranges: ≤80℃ Use humidity ranges: 35%~90% (not ) Allowable pressure withstand: water pressure below 1.75Mpa Storage temperature: -25～+80℃ Package Includes: 1xWater flows sensors note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.