Amazon.com: CQRobot Ocean: Contact Water/Liquid Level Sensor Compatible with Raspberry Pi/Arduino. for Automatic Irrigation Systems, Aquariums, Plants, in The Garden, in Agriculture etc. : Industrial & Scientific
DIGITEN G1/4" Water Flow Sensor, Food-Grade Hall Effect Sensor Flow Meter Flowmeter Counter Connect Hose 0.3-6L/min - Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible: Amazon.com: Industrial & Scientific
Water flow sensor raspberry pi node red LCD | Flow meter YF-S201 Node red - YouTube
Can The Tiny $4 Raspberry Pi Pico Run An AI Project? A Smart IoT Water Meter Transformation Project - YouTube
IoT Water Flow Meter using ESP8266 & Water Flow Sensor
DIGITEN G1/2" Water Flow Sensor, Food-Grade Hall Effect Sensor Flow Meter Flowmeter Counter 1-30L/min - Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible: Amazon.com: Industrial & Scientific
Arduino Water Flow Sensor to Measure Flow Rate & Volume