Features: 1 New and high quality Stable performance: simple working principle, stable and reliable performance, long service life and light volume. High pressure resistant: can be used in a wide range of liquid pressure, and can withstand a maximum of more than 1 MPa. High Protection: can be used in indoor or outdoor environments. Adjustable: the flow range is adjustable, allowing the user to select the flow control value according to the system requirements. Wide range of applications: can be used in swimming pool equipment, gas meters, water meters, coffee machines, water heaters and central air conditioners. Packing list: 1 x water flow sensor. Specifications: Material: plastic, metal. Working voltage: 100V. Working temperature: - 10 ~ 100 Measuring range: 1L / min. Due to manual measurement, an error of 1 - 2 cm is allowed, please make sure you do not mind before ordering. 2. Due to the difference between different monitors, the pictures may not reflect the actual color of the