Gravity: Liquid Flow Sensor (G3/4)

Electromagnetic flow sensor for low-viscosity liquids with G3/4 thread; 3.5–24 V, NPN pulse output (75 pulses/L), ±1% accuracy at 20–3000 L/h, range 30–3000 L/h. Maximum pressure 1.2 MPa; O-ring sealed, RoHS compliant.

Green WireOfficial table 2 row 1
OUT / Signal Output
Type · digital io
Red WireOfficial table 2 row 2
VCC / Positive Power Supply 3.5V-24V
Type · power
Black WireOfficial table 2 row 3
GND / Negative Power Supply
Type · ground

Pin	Position	Type	Function	Voltage
Green Wire	Official table 2 row 1

Start wiring

Analog · UART · 3.3 – 5 V · Gravity

Verify supply voltage and logic levels before powering up.

Module pins: Red Wire, Black Wire. Schematik maps them to your board in the app.

Soil & liquid

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Adafruit Simple Soil Moisture Sensor visual preview

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