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

YF-S402 G1/4" PVC Water Flow Sensor

  • Stock: 5

    Availability: InStock priceValidUntil: 2026-05-15

  • Brand: Generic
  • SKU: 1632 | DAB255

Availability: InStock priceValidUntil: 2026-05-15

  • 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 long does delivery take?
Delivery time depends on your PIN code and the courier network. Tracking is shared after dispatch.
What payment methods do you accept?
We accept UPI, cards, netbanking, and other checkout options shown on the payment page.
What if I need a component that is not listed on your website?
Contact us with the part number or requirement — we may be able to source it or suggest an equivalent.
Will you send the same brand/manufacturer every time?
For some passive components, brand may vary based on availability. If you need a specific brand or matching lot, mention it before ordering and we’ll advise availability.

NEW Products

Product Page : New Products

9 Pin Male Right Angle Screwable Plug 7.62mm (Combicon Connector)

Combicon Connector 9 Pin Male Right Angle Screwable Plug 7.62mm 9 Pin Male Right Angle Screwable Pl..

Rs.22.30 (inc GST)
Rs.18.90 + GST

SKU: 3644 | DAF251
Stock: 1

MAX3232CSE+ RS-232 Interface IC

MAX3232CSE+ RS-232 Transceiver IC MAX3232CSE+ RS-232 Transceiver IC with 3.0V to 5.5V supply, 120 kb..

Rs.84.96 (inc GST)
Rs.72.00 + GST

SKU: 3883 | DAG607
Stock: 10

IRFP350PBF N-channel Power MOSFET

Vishay IRFP350 N-channel Power MOSFET IRFP350PBF, N-channel MOSFET, low on-resistance, fast switchi..

Rs.171.69 (inc GST)
Rs.145.50 + GST

SKU: 1120 | DAA180
Stock: 13

P6KE20CA TVS Diode

P6KE20CA TVS Diode P6KE20CA TVS Diode offers 600 Watts protection against voltage spikes with 17.1V..

Rs.5.90 (inc GST)
Rs.5.00 + GST

SKU: 2465 | DAC294
Stock: 20

Have You Seen

Product Page : Have You Seen

18650 Battery Holder for 4 Battery

18650 Battery Holder for 4 Battery18650 Battery Holder for 4 BatteryFeatures of 18650 HolderThis ite..

Rs.67.26 (inc GST)
Rs.57.00 + GST

SKU: 1110 | DAB284
Stock: 47

Hongfa HFD27/012-S 12 Volt Relay

Combicon 2 Pin Right Angle Male Header Connector XY-2500 F-B 5.08 series 2 Pin Right Angle Male hea..

Rs.46.96 (inc GST)
Rs.39.80 + GST

SKU: 2740 | DAE275
Stock: 4

CJMCU MCP4725 I2C DAC Breakout Development Board

CJMCU MCP4725 I2C DAC Breakout Development Board CJMCU MCP4725 I2C DAC Board for 12-bit resolution a..

Rs.163.49 (inc GST)
Rs.138.56 + GST

SKU: 8947 | DAF703
Stock: 10

DFRobot FireBeetle 2 ESP32-E IoT Microcontroller with Header (Supports Wi-Fi & Bluetooth)

DFRobot FireBeetle 2 ESP32-E IoT Microcontroller with Header (Supports Wi-Fi & Bluetooth)DFR0654..

Rs.1,245.73 (inc GST)
Rs.1,055.70 + GST

SKU: 10352 | DAJ184
Stock: 5

Related Products

Turbidity Sensor

Turbidity Sensor

Turbidity Sensor ModuleTurbidity SensorTurbidity Measurement is one of the key test in water quality..

Rs.1,178.82 (inc GST) Rs.736.32
Rs.999.00 + GST

SKU: 518 | DAA792
Stock: 1
18650 Battery Holder for 3 Battery

18650 Battery Holder for 3 Battery

18650 Battery Holder for 3 BatteryThis battery holder connects three 18650 Batteries in Series.Featu..

Rs.43.90 (inc GST)
Rs.37.20 + GST

SKU: 1109 | DAB283
Stock: 15
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
MAX6675ISA K-Thermocouple to Digital Converter

MAX6675ISA K-Thermocouple to Digital Converter

MAX6675 K-Thermocouple to Digital Converter IC MAX6675ISA K-Thermocouple to Digital Converter IC wi..

Rs.305.62 (inc GST)
Rs.259.00 + GST

SKU: 3152 | DAE837
Stock: 25
USB 3.1 Type-C 4 Pin Female Connector With Data And Charging Port – Panel Mount

USB 3.1 Type-C 4 Pin Female Connector With Data And Charging Port – Panel Mount

USB 3.1 Type-C 4 Pin Female Connector Panel Mount USB 3.1 Type-C 4 Pin Female Connector for data tr..

Rs.54.52 (inc GST)
Rs.46.20 + GST

SKU: 8127 | DAH633
Stock: 30
DFRobot Gravity: Lab Grade Analog EC / Electrical Conductivity Sensor Kit for Water Quality Monitoring (K=1)

DFRobot Gravity: Lab Grade Analog EC / Electrical Conductivity Sensor Kit for Water Quality Monitoring (K=1)

DFRobot Gravity: Lab Grade Analog EC / Electrical Conductivity Sensor Kit for Water Quality Monitori..

Rs.7,668.00 (inc GST)
Rs.6,498.31 + GST

SKU: 10362 | DAJ194
Stock: 5
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

Tags: water flow sensor, flow sensor, digital sensor