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: 2026-09-15

  • Brand: Generic
  • SKU: 1632 | DAB255

Availability: InStock priceValidUntil: 2026-09-15

  • 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.
What if tracking shows “delivered” but I didn’t receive it?
Message us immediately. Send: order number + tracking number + delivery address confirmation. We’ll coordinate with the courier and guide next steps.
I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?
You can contact us via Contact us page and send your order details and GST number we will send you updated Invoice soft copy.
Do you support Purchase Orders (PO) for companies/colleges?
Yes — we accept POs. To process a PO faster, share: PO copy, billing address, shipping address, GSTIN (if applicable), and contact number. We’ll confirm availability, price, and dispatch timeline.
What if I received fewer / more quantity than ordered?
Send your order number and unboxing photo/video. We’ll verify and resolve quickly.
View all FAQs →

NEW Products

Product Page : New Products

1000UF 35V KELTRON RADIAL ELECTROLYTIC CAPACITOR

1000UF 35V KELTRON RADIAL ELECTROLYTIC CAPACITOR

KELTRON 1000UF 35V Radial Electrolytic Capacitor 1000UF 35V KELTRON Capacitor with high capacitance..

Rs.14.16 (inc GST)
Rs.12.00 + GST

SKU: 5037 | DAD729
Stock: 100
STF21N65M5 MOSFET N-channel 650 V (TO-220 Package)

STF21N65M5 MOSFET N-channel 650 V (TO-220 Package)

STMicroelectronics STF21N65M5 N-channel MOSFET STF21N65M5 N-channel MOSFET, 650 V, excellent switch..

Rs.220.66 (inc GST)
Rs.187.00 + GST

SKU: 3907 | DAF946
Stock: 10
XL1509-Adj E1 Buck DC to DC Converter IC (SOP8L Package)

XL1509-Adj E1 Buck DC to DC Converter IC (SOP8L Package)

XL1509 Adjustable Buck DC to DC Converter IC XL1509-Adj E1 Buck Converter IC, adjustable output, 2A..

Rs.25.96 (inc GST)
Rs.22.00 + GST

SKU: 3657 | DAF397
Stock: 74
Write review
IRF3710 N-Channel MOSFET (Doingter)

IRF3710 N-Channel MOSFET (Doingter)

Doingter IRF3710 N-Channel Power MOSFET IRF3710 N-Channel MOSFET - 100V, 57A, TO-220 Package for eff..

Rs.36.11 (inc GST)
Rs.30.60 + GST

SKU: 2851 | DAE545
Stock: 10
Write review

Have You Seen

Product Page : Have You Seen

HLK-5M12 AC to DC 5 Watts 12 Volts Module

HLK-5M12 AC to DC 5 Watts 12 Volts Module

HLK-5M12 12V 5W Power Supply Module HLK-5M12 isolated 12V 5W power module; compact design; input ra..

Rs.276.12 (inc GST)
Rs.234.00 + GST

SKU: 670 | DAB338
Stock: 20
XY128 3 pin Screw Terminal 7.5mm Pitch

XY128 3 pin Screw Terminal 7.5mm Pitch

XY128 3 Pin 7.5mm Pitch Screw Terminal Block Connector XY128 3-pin Screw Terminal Block with 7.5mm P..

Rs.23.36 (inc GST)
Rs.19.80 + GST

SKU: 8594 | DAF698
Stock: 50
A3144 Hall Effect Switch

A3144 Hall Effect Switch

A3144 Hall Effect SensorA3144 is a Hall effect Switch/Sensor.A3144 is a monolithic integrated circui..

Rs.17.70 (inc GST)
Rs.15.00 + GST

SKU: 394 | DAA576
Stock: 150
Mornsun LS03-13B12R3 AC to DC Power Supply Module

Mornsun LS03-13B12R3 AC to DC Power Supply Module

Mornsun LS03-13B12R3 12 Volt AC to DC Power Supply Mornsun LS03-13B12R3 AC to DC Converter, 3W, 12V..

Rs.223.02 (inc GST)
Rs.189.00 + GST

SKU: 2577 | DAC978
Stock: 50

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
DC Fan 3" X 3" 12 Volt

DC Fan 3" X 3" 12 Volt

12 Volt DC Fan3" x 3" Small 12V DC Brushless Cooling Fan / CPU Fan. This is a 12 volts, 180 ma brush..

Rs.132.16 (inc GST)
Rs.112.00 + GST

SKU: 851 | DAD184
Stock: 0
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
8S 20Amp Lithium Polymer BMS Battery Protection Board

8S 20Amp Lithium Polymer BMS Battery Protection Board

8S 20A Lithium Polymer BMS Battery Protection BoardPCM without balance + balance board = PCM with ba..

Rs.1,572.35 (inc GST)
Rs.1,332.50 + GST

SKU: 1968 | DAB398
Stock: 0
MAX31865ATP RTD-to-Digital Converter IC

MAX31865ATP RTD-to-Digital Converter IC

MAX31865ATP RTD-to-Digital Converter IC MAX31865ATP RTD-to-Digital Converter IC for precise tempera..

Rs.413.00 (inc GST)
Rs.350.00 + GST

SKU: 7341 | DAD740
Stock: 0
Write review
7" Official Raspberry Pi Display with Capacitive Touchscreen

7" Official Raspberry Pi Display with Capacitive Touchscreen

Raspberry Pi 7" Capacitive Touchscreen Display 7" display with 10-finger touch support, connects via..

Rs.7,800.01 (inc GST)
Rs.6,610.18 + GST

SKU: 7499 | DAG997
Stock: 1
Write review

Tags: water flow sensor, flow sensor, digital sensor