Description: Flowmeter with G1/2 Threads - simple output to measure the flow rate of water or other non-flammable liquids Great for use with Arduinos or other microcontrollers - may also be used for gases with some adjustment for density 1/2" Pipe Threads, Hall Effect Sensor interface, 1-30L/min 1.2MPa Capacity Can use for Water heaters, credit card machines, water vending machine, flow measurement device Lght weight, small size, easy to install Specification: 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: ≤ 10 mA (DC 5V) Use temperature: ≤ 80 ℃ Operating humidity range: 35%~90%RH (no frost) Aallowing pressure: pressure 1.2Mpa Temperature: -25~+80 ° c External threads: 1/2" High amplitude ≥ 4.6V Low amplitude ≤ 0.5V Electric strength 1250V/min Insulation resistance ≥ 100M&; Hydrostatic pressure testing ≤ 2.0Mpa  External Threads: 1/2" Package Includes: 1x1/2" Threads Water Flow Sensor