Our water flow sensor is made of high-quality copper material, very sturdy and durable to use, it is a kind of G1/2" type water flow sensor, its maximum water pressure is 1.75MPa and the range of flow is from 1L/min to 30L/min. Lightweight and has compact size, stable performance, low water pressure start, very easy to install and safe to use. And it can be perfectly used for water heaters, water dispenser, water purifier, water vending machine, coffee maker, flow measurement device, water control machine and so on.