DIGITEN Water Flow Control Meter LCD Display Controller+G1" Water Flow Hall Effect Sensor Flow Meter 1-60L/min+G1" Solenoid Valve Normally Closed N/C+DC 12V Power Adapter: Amazon.com: Industrial & Scientific
DIGITEN G3/4" Water Flow Sensor, Food-Grade Hall Effect Sensor Flow Meter Flowmeter Counter 1-60L/min - Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible: Amazon.com: Industrial & Scientific
1/2",3/4",1" Inch Plastic/brass/steel Hall Effect Pulse Turbine Water Flow Meter Sensor With 3 Wires - Buy Turbine Flow Sensor,Turbine Flow Meter,Pulse Flow Sensor Product on Alibaba.com
Indicating Flow Meter with Analog Outputs| Omega Engineering
Rosemount MS Magnetic Flow Meter Sensor | Magmeters | Instrumart
Liquid Flow Meter - Brass 1/2 Nominal Threaded : ID 833 : $24.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Water Fuel Flow Meter Sensor Counter Hall Flowmeter Pool Float Switch for Water Heaters Credit Card Machine DN20 1 30L/min|flow meter|fuel flow meterfuel flow - AliExpress