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EMS-00016-B

Name: Water Flow Sensor YF-S401
Brand: Generic
SKU: EMS-00016-B
Availability: InStock

(Last updated) Jun 02, 2026

Water Flow Sensor YF-S401

Water Flow Sensor

Description

The YF-S401 Water Flow Sensor is a compact hall-effect liquid flow meter used to measure water flow rate in pipes and tubing systems. Inside the sensor, a rotor with magnets spins as water passes through it. The hall-effect sensor generates pulse signals proportional to the flow rate. It is widely used in water dispensers, smart irrigation systems, liquid monitoring systems, coffee machines, industrial automation, and Arduino/ESP32 projects.

Manufacturer Details

Manufacturer	Part Number
YF Electronics	YF-S401
DFRobot	SEN0216
FlyRobo	YF-S401
Robocraze	RC-YFS401

Vendor Suppliers

Amazon ( india ) Amazon ( Japan ) Amazon ( USA ) Amazon ( canada ) Robu.in ( India ) FlyRobo ( India )

Application Resources

No application resources.

Technical Specifications

Product Type	Water Flow Sensor
Model	YF-S401
Sensor Type	Hall Effect Flow Meter
Operating Voltage	5V – 18V DC
Working Current	≤ 15 mA
Flow Range	0.3 – 6 L/min