Iotcart YF-S201 1/2 Inch Water Flow Sensor for Arduino & Raspberry Pi - Buy in India

1/2 Inch Water Flow Sensor - YF-S201

Name: 1/2 Inch Water Flow Sensor - YF-S201
Brand: Iotcart
SKU: IOT-3206
Price: 199.41 INR
Availability: InStock
Rating: 5 (1 reviews)

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Condition: NEW

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IN STOCK SKU#: IOT-3206

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1/2 Inch Water Flow Sensor - YF-S201 The YF-S201 water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The sensor measures the speed of the rotor and converts it to a flow rate. The sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The sensor is commonly used in applications such as irrigation systems, water treatment plants, and industrial process control. It is often preferred over other types of flow sensors because it is easy to install and has a low cost. Water flow sensors are installed at the water source or in pipes to measure the rate of flow and calculate the amount of water that has passed through the pipe. Water flow is measured in liters per hour or cubic meters. Working: A water flow sensor is made up of a plastic valve through which water can pass. A water rotor and a hall effect sensor are used to sense and measure the flow of water. When water flows through the valve, it causes the rotor to rotate. The motor's speed can be changed as a result of this. The hall effect sensor calculates this change and outputs it as a pulse signal. The rate of flow of water can thus be measured. The Hall effect is the primary operating principle of this sensor. The rotation of the rotor induces a voltage difference in the conductor in this sensor, according to this principle. This induced voltage difference runs in the opposite direction of the electric current. When the moving fan rotates due to the flow of water, the rotor rotates, inducing a voltage. The hall effect sensor measures the induced voltage and displays it on the LCD display. read more : What is a Water Sensor? The water flow sensor can be used with hot, cold, or warm water, as well as clean or dirty water. A microcontroller board such as Arduino , Raspberry pi , a LCD display or OLED Display , Breadboard and connecting wires are required for this. The sensor is installed at the water source inlet or the pipe opening. Three wires are connected to the sensor. The red wire connects to the supply voltage. A black wire connects to the ground, and a yellow wire collects the Hall effect sensor output. 5V to 18V DC is required for supply voltage. Also, read our blog on the Water Level Sensor explaining the different types of water sensors, working, and applications. Connection details: Red wire : +5V Black wire : GND Yellow wire : PWM output. Features: Lightweight, small in size, and simple to install. Durable wearable impeller shaft The upper and lower force structure seal ring never leaks. Chemical erosion and nonviolent shock No hitting or throwing. Vertically mounted Applications: This sensor can be used in water heating systems Automatic water dispensers Irrigation systems Other flow metering equipment.

1/2 inch NPT thread for standard pipe compatibility
Hall effect sensor with PWM digital output
Wide operating voltage: 5V–18V DC
Flow range: 1–30 L/min (±10% accuracy)
Works with clean, dirty, hot, and cold water
Compatible with Arduino, Raspberry Pi, ESP32
Vertical mounting required for optimal performance

Lightweight and compact design
Durable impeller shaft with sealed bearings
Non-leaking upper and lower seal rings
Resistant to chemical erosion and mild shock
Easy integration with microcontrollers
Low-cost solution for flow monitoring

Model	YF-S201
Sensor Type	Hall effect
Working Voltage	5 to 18V DC
Working Flow Rate	1 to 30 Liters/Minute
Maximum water pressure	2.0 MPa
Output rise time	0.04us
Output fall time	0.18us
Pulses per Liter	450
Frequency (Hz)	7.5 * Flow rate (L/min)
Compatibility	1/2" nominal pipe connections, 0.78" outer diameter, 1/2" of thread
Dimensions	2.5" x 1.4" x 1.4"
Weight	25 grams

What is the operating voltage of the YF-S201 water flow sensor?

The YF-S201 operates on 5V to 18V DC, making it compatible with Arduino, Raspberry Pi, and other 5V logic devices.

How do I connect the YF-S201 sensor to an Arduino?

Connect red to 5V, black to GND, and yellow to a digital pin. Use pulse counting to calculate flow rate in liters per hour.

Can this sensor be used with dirty or hot water?

Yes, the YF-S201 is designed to work with clean, dirty, hot, or cold water up to moderate temperatures.

What is the flow rate measurement range?

The sensor measures flow rates from 1 to 30 liters per minute with an accuracy of ±10%.

Is the sensor compatible with Raspberry Pi?

Yes, the PWM output can be read by Raspberry Pi using GPIO interrupts and Python scripts.

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About 1/2 Inch Water Flow Sensor - YF-S201 by Iotcart

Shop YF-S201 flow meter for Arduino & Raspberry Pi. 5V-18V DC, 1-30 L/min range. Ideal for irrigation & water monitoring.

Categorised under: Raspberry Pi Kits› Sensors› Industrial› DC Motors› pH/Turbidity/Flow sensors

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1/2 Inch Water Flow Sensor - YF-S201

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What is the operating voltage of the YF-S201 water flow sensor?

How do I connect the YF-S201 sensor to an Arduino?

Can this sensor be used with dirty or hot water?

What is the flow rate measurement range?

Is the sensor compatible with Raspberry Pi?

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About 1/2 Inch Water Flow Sensor - YF-S201 by Iotcart

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