ITEM NAME:Easy Install Control Water Flow Sensor Switch Coffee Machine Copper Hall Effect Description Made of copper material, durable and reliable. Its maximum water pressure is 1.75MPa, the range of flow is from 1L/min to 30L/min There is an integrated hall effect sensor that outputs an electrical pulse with every revolution. Three wire connection, easy to install. Stable performance, low water pressure start, safe to use. Perfectly used for water heaters, water purifier, coffee maker, flow measurement device, etc. &;nbsp; Specifications: Color: as shown Material: copper Size: about 20.6x44mm Working media: water, 60 Voltage: DC4.5-18V Rated current: 10mA Electric strength: AC500V, 50Hz Flow range: about 1-30L/min Pressure resistance: 1.75Mpa Port: G1/2 &;nbsp; Package include: 1*water flow sensor &;nbsp; Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow slight deviation for the measurement data and make sure you do not mind before ordering..There is an integrated hall effect sensor that outputs an electrical pulse with every revolution. Its maximum water pressure is 1.75MPa, the range of flow is from 1L/min to 30L/min. Three wire connection, easy to install.