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YF-S201 Hall Effect Water Flow Meter Sensor
$2.2100
In stock
SKU
SEN-20-005
Volume discounts:
- +50 5 % $2.1000
- +100 7 % $2.0500
- +300 10 % $1.9900
- +500 12 % $1.9400
- +1000 15 % $1.8800
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YF-S201C Transparent Water Flow Sensor Previous 
The YF-S201 Hall Effect Water Flow Meter Sensor is a water flow sensor module with a plastic valve body, rotor, and Hall effect sensor. It measures liquid flow by detecting rotor rotation as water passes through the sensor. The PWM output provides pulse signals related to flow rate. This module is suitable for electronics and microcontroller-based flow measurement projects. It is designed with clear wire connections and a digital output signal.
Features of YF-S201 Hall Effect Water Flow Meter Sensor
- Hall effect sensing
- Plastic valve body
- Rotor-based flow detection
- Digital PWM output
- Three-wire connection
Specifications of YF-S201 Hall Effect Water Flow Meter Sensor
- Model: YF-S201
- Current measurable: Max 15 mA
- Allowed pressure: < 1.75 MPa
- Operating voltage: 5 to 18 V DC
- Cross-section diameter: 0.5 inch (1.25 cm)
- Water flow measurement rate: 1 to 30 L/min
- Accuracy: ±10%
- Maximum water pressure: 2.0 MPa
- Pulses per liter: 450
- Output: Digital - PWM
- Wire color: Red
- Wire function: Power
- Wire color: Black
- Wire function: GND
- Wire color: Yellow
- Wire function: PWM output signal
- Operating voltage: 5V to 24V DC
- Minimum working voltage: 4.5V DC
- Sensor type: Hall Effect
- Current requirement: 15mA @ 5V
- Operating temperature range: -25°C to 80°C
- Operating humidity range: 35% to 90% RH
- Water pressure: ≤ 1.75MPa
- Flow rate: 1 to 30 L/min
- Cable length: 15cm
- Connection thread: 1/2³
How to Use YF-S201 Hall Effect Water Flow Meter Sensor
- Connect the red wire to power.
- Connect the black wire to GND.
- Connect the yellow wire to the PWM input signal pin.
- Count the output pulses to measure flow.
More Info
- Water flow is represented by rotor speed.
- The sensor outputs one electrical pulse per rotor revolution.
| Interface Type | Digital, PWM |
|---|---|
| Operating Voltage (V) | 5-18V DC |
| Operating Current (mA) | 15 mA max |
| Mounting Type | G1/2 (21mm) |
| Output Type | PWM |
| Accuracy | ±10% |
| Measurement Range | 1-30 L/min |
| Environmental Parameter | Liquid Flow |
| Probe Type | Immersion |
| Chipset | YF-S201 |
| Relay Output | No |
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