Product Images are shown for illustrative purposes only and may differ from actual product.

YF-S402 G1/4" PVC Water Flow Sensor


Write a review | 1 reviews

  • Stock: 5

    Availability: InStock priceValidUntil: 2026-08-04

  • Brand: Generic
  • SKU: 1632 | DAB255

Availability: InStock priceValidUntil: 2026-08-04

  • Rs. 327.45 (inc GST)
    Rs.277.50 + GST

    Qty :

GST Invoice: Available for all purchases; eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need a larger quantity or item not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

YF-S402 G1/4" PVC Water Flow Sensor

This water flow sensor is basically a small turbine whose output signal is a series of digital pulses.

The frequency of the pulses is proportional to the flow rate of the liquid passing through the sensor. That digital signal, whose frequency is in the range between 0Hz and 100Hz, can be read directly through one of the digital input/output pins of a microcontroller.

Specifications

  • Minimum rated working voltage : DC 5~24V;
  • Max. working current : 15mA (DC 5V);
  • Working voltage range : DC 5~18V;
  • Load capability : <= 10mA (DC 5V);
  • Working temperature : <= 80'C;
  • Humidity range : 35%~90%RH (no frost);
  • Water pressure : <1.75Mpa;
  • Storage temperature : -25~80'C; Storage humidity: 25~95%RH;
  • Flow range : 1~5L/min'; Frequency: 4380 pulse for 1L through the sensor
  • Dimensions : 2.28 in x 1.38 in x 1.06 in (5.8 cm x 3.5 cm x 2.7 cm)
  • Thread Size : G1/4"

Features

  • Lightweight, Small in size, Easy to install;
  • With stainless steel axis in the wheel, abrasion resistant;
  • Sealing ring design to prevent water leaks;
  • Compliant with RoHS standard

Application

  • Suitable for water heater
  • POS terminal
  • automatic water dispenser 

Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

Reviews (1)

Write a review

Note: HTML is not translated!
    Bad           Good
CAPTCHA verification code

Frequently Asked Questions

Do you provide a GST bills?
Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
What is your return / replacement policy?
Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
How do I track my shipment?
After dispatch, you’ll receive a tracking link/number via email/WhatsApp/SMS (as applicable).
What payment methods do you accept?
We accept UPI, cards, netbanking, and other checkout options shown on the payment page.
How can I contact you for support, sales, or bulk orders?
Use the Contact Us page or email/phone mentioned on the website with your part number and requirement.
Can I return a component if I ordered the wrong value/package?
If the item is unused and in original packaging, we’ll check eligibility case-by-case. Some items may be non-returnable depending on category/condition.
View all FAQs →

NEW Products

Product Page : New Products

6 Pin Male Right Angle Header 5.08 mm pitch (Combicon Connector)

6 Pin Male Right Angle Header 5.08 mm pitch (Combicon Connector)

Combicon 6 Pin Right Angle Male Header Connector XY2500 F-B 5.08 series 6 Pin Right Angle Male head..

Rs.13.81 (inc GST)
Rs.11.70 + GST

SKU: 2890 | DAE365
Stock: 10
CD75 470UH(471) SURFACE MOUNT POWER DC-DC CONVERTER INDUCTORS

CD75 470UH(471) SURFACE MOUNT POWER DC-DC CONVERTER INDUCTORS

CD75 470UH Surface Mount Power Inductor CD75 470UH(471) Inductor with 470µH inductance, low DCR, an..

Rs.29.50 (inc GST)
Rs.25.00 + GST

SKU: 7597 | DAE927
Stock: 70
433MHz RF TRANSMITTER AND RECEIVER WIRELESS MODULE

433MHz RF TRANSMITTER AND RECEIVER WIRELESS MODULE

433MHz RF Transmitter and Receiver Wireless Module XD-RF-5V Wireless Module with 433 MHz frequency, ..

Rs.112.10 (inc GST)
Rs.95.00 + GST

SKU: 6008 | DAC813
Stock: 40
Write review
Hongfa HFE10-70 / 12-ZST-L2 Relay

Hongfa HFE10-70 / 12-ZST-L2 Relay

Hongfa HFE10-70 / 12-ZST-L2 RelayHFE10-70 / 12-ZST-L2 Relay with 10A rating, 12V coil voltage, and S..

Rs.660.80 (inc GST)
Rs.560.00 + GST

SKU: 10559 | DAJ617
Stock: 100
Write review

Have You Seen

Product Page : Have You Seen

Meanwell SMPS EDR-120-12

Meanwell SMPS EDR-120-12

Meanwell EDR-120-12 120 Watt DIN Rail SMPS Power SupplyMeanwell EDR-120-12: 120 Watt DIN Rail SMPS w..

Rs.2,289.20 (inc GST)
Rs.1,940.00 + GST

SKU: 2505 | DAC669
Stock: 0
2 Pin 1.25 mm JST Side Entry SMT Connector

2 Pin 1.25 mm JST Side Entry SMT Connector

2 Pin 1.25 mm JST Side Entry SMT Connector2 Pin SMT JST Connector with 1.25mm pitch for high-density..

Rs.8.26 (inc GST)
Rs.7.00 + GST

SKU: 2883 | DAE573
Stock: 50
Waveshare 10.1inch Capacitive Touch Screen LCD (H), 1024×600, HDMI, IPS

Waveshare 10.1inch Capacitive Touch Screen LCD (H), 1024×600, HDMI, IPS

Waveshare 10.1inch Capacitive Touch Screen LCD 10.1 inch LCD with 1280x800 resolution, HDMI interfa..

Rs.10,502.00 (inc GST)
Rs.8,900.00 + GST

SKU: 7693 | DAF276
Stock: 2
Write review
DC 0-200V 10A LCD Digital Current Volt Meter Module

DC 0-200V 10A LCD Digital Current Volt Meter Module

DC 0-200V 10A LCD Digital Current Volt Meter ModuleDC 0-200V 10A LCD digital voltmeter module for mo..

Rs.615.70 (inc GST)
Rs.521.78 + GST

SKU: 10645 | DAJ693
Stock: 5

Related Products

YF-S402 G1/4" PVC Water Flow Sensor

YF-S402 G1/4" PVC Water Flow Sensor

YF-S402 G1/4" PVC Water Flow SensorThis water flow sensor is basically a small turbine whose output ..

Rs.327.45 (inc GST)
Rs.277.50 + GST

SKU: 1632 | DAB255
Stock: 5
STM32F303 Discovery Kit

STM32F303 Discovery Kit

STM32F303 Discovery Board for Rapid PrototypingSTM32F303 Discovery Kit with STM32F303VCT6 MCU, 256KB..

Rs.2,041.40 (inc GST)
Rs.1,730.00 + GST

SKU: 2133 | DAB512
Stock: 1
BL6503E Single Phase Energy Meter IC

BL6503E Single Phase Energy Meter IC

BL6503E Single Phase Energy Meter IC BL6503E Energy Meter IC for accurate energy measurement; High ..

Rs.123.90 (inc GST)
Rs.105.00 + GST

SKU: 3673 | DAF507
Stock: 7
DFRobot Gravity: Analog Water Pressure Sensor

DFRobot Gravity: Analog Water Pressure Sensor

DFRobot Gravity: Analog Water Pressure SensorDFRobot Gravity: Analog Water Pressure Sensor, supports..

Rs.2,051.78 (inc GST)
Rs.1,738.80 + GST

SKU: 10365 | DAJ197
Stock: 5
DFRobot Gravity: Analog Turbidity Sensor for Arduino

DFRobot Gravity: Analog Turbidity Sensor for Arduino

DFRobot Gravity: Analog Turbidity Sensor for ArduinoArduino turbidity sensor detects water quality b..

Rs.1,052.00 (inc GST)
Rs.891.53 + GST

SKU: 10377 | DAJ209
Stock: 4

Tags: water flow sensor, flow sensor, digital sensor