ITEM NAME:3/4" External threads 1-60L/min Water Flow Sensor Flowmeter Hall Flow Senso E1P1 3/4" External threads 1-60L/min Water Flow Sensor Flowmeter Hall Flow Senso E1P1 Lght weight, small size, easy to install. Inlaid with stainless steel impeller shaft, durable wearable. Seal Ring with the upper and lower force structure never leaks. It is installed in the hot water inlet end for detecting water flow. When water through the flow rotor assembly, Magnetic rotor will rotate and Speed will change as the flow change. Hall Current sensor output corresponding pulse Signal and feedback to controller, then the controller will control the flow. Can use for Water heaters, credit card machines, water vending machine, flow measurement device. Mounted vertically, should not exceed 5 degrees inclination. Temperature of Medium should not exceed 120 Celsius Cord Connection: Red: Positive(+) Yellow: Signal output. Black: Negative(-) The lowest rated working voltage: DC4.5 5V-24V. Maximum operating current: 15 mA (DC 5V). Working voltage range: DC 5~18 v. Load capacity: less than equal 10 mA (DC 5V). Work temperature: less than equal 80 Celsius Work humidity range: 35%~90%RH (no frost) Allowing pressure: pressure 1.75Mpa Storage temperature: -25~+80 Celsius Save humidity: 25%~95%RH Flow Range :1-60L / min External threads: 3/4" Package Includes:1 x 1-60L / min Water flow sensor Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.