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: 2026-04-18

  • Brand: Generic
  • SKU: 1632 | DAB255

Availability: InStock priceValidUntil: 2026-04-18

  • 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 dispatch take?
In-stock items typically dispatch within 1–2 working days. If any item needs sourcing, we’ll update you with the expected timeline before dispatch.
What payment methods do you accept?
We accept UPI, cards, netbanking, and other checkout options shown on the payment page.
Do you accept bulk / OEM orders?
Yes — we handle bulk orders and OEM supply requests across India. Share part number and quantity for a quote.
Do you supply branded parts (Texas Instruments, ST, Vishay, etc.)?
Yes — if a brand/manufacturer is listed on the product page. If not listed, share the exact manufacturer + part number and we’ll check sourcing options.

NEW Products

Product Page : New Products

SS Switch IP67 16mm 12 to 24 Volts, Latching, Green Ring Indicator (Flat Head)

SS Switch IP67 Latching 16mm with Green Ring Indicator SS Switch IP67, Latching, 16mm, 12-24V, Wate..

Rs.369.69 (inc GST)
Rs.313.30 + GST

SKU: 8608 | DAH728
Stock: 10

TCRT5000L Optical Sensor

TCRT5000LReflective Optical Sensor with Transistor OutputThe TCRT5000 and TCRT500L are reflective se..

Rs.53.10 (inc GST)
Rs.45.00 + GST

SKU: 262 | DAA621
Stock: 2

SINDA 16X2 Green LCD Display

SINDA 16X2 Green LCD Display Module SINDA 16X2 LCD Display with Green Backlight, 16x2 Character Form..

Rs.159.30 (inc GST)
Rs.135.00 + GST

SKU: 7276 | DAD185
Stock: 9

HLK-PM01L AC to DC 3 Watt 5 Volt Power Module

HLK-PM01L AC To DC 3 Watt 5 Volt Power Module HLK-PM01L 5V 3W AC to DC power supply with compact si..

Rs.206.50 (inc GST)
Rs.175.00 + GST

SKU: 2599 | DAC992
Stock: 20

Have You Seen

Product Page : Have You Seen

80 Kg Load cell CZL 601 - Electronic Weighing Scale Sensor

CZL 601 80Kg Load Cell for Electronic Weighing Scale CZL601 80Kg Load Cell for accurate weight meas..

Rs.446.04 (inc GST)
Rs.378.00 + GST

SKU: 2644 | DAB318
Stock: 2

Heat Shrink Sleeve 4mm Black

Heat Shrink Sleeve 4 mm BlackCB-HFT 4 mm Black Heat Shrink Sleeve for insulation with a 2:1 shrink r..

Rs.18.03 (inc GST)
Rs.15.28 + GST

SKU: 2374 | DAB938
Stock: 50

Nextion Discovery NX3224F028 2.8" Resistive Touch Display

Nextion NX3224F028 2.8" Discovery Resistive Touchscreen DisplayNX3224F028 - 2.8" Resistive Touchscre..

Rs.2,655.00 (inc GST)
Rs.2,250.00 + GST

SKU: 3179 | DAD103
Stock: 20

1 Way Push Button Box

1 Way Push Button Box1 Way Empty Push Button BoxThis  is black and white empty box for push but..

Rs.94.40 (inc GST)
Rs.80.00 + GST

SKU: 1693 | DAB986
Stock: 1

Related Products

ESP07 Wi-Fi Wireless Transceiver Module

ESP07 Wi-Fi Wireless Transceiver Module

ESP Wireless Transceiver Module ESP-07 ESP-07 Wi-Fi module with integrated TCP/IP stack, 24dBm PA, ..

Rs.259.60 (inc GST)
Rs.220.00 + GST

SKU: 857 | DAA555
Stock: 5
YF-G1 DN25 1" Water Flow Sensor

YF-G1 DN25 1" Water Flow Sensor

YF-G1 DN25 1 inch Water Flow SensorThis one is suitable to detect flow in water dispenser or coffee ..

Rs.900.34 (inc GST)
Rs.763.00 + GST

SKU: 1630 | DAB257
Stock: 8
YF-S403 3/4" Water Flow Hall Sensor

YF-S403 3/4" Water Flow Hall Sensor

YF-S403 3/4" Water Flow Hall SensorYF-S403 3/4" Hall effect Based Flow SensorWater flow sensor is ma..

Rs.575.25 (inc GST)
Rs.487.50 + GST

SKU: 1634 | DAB259
Stock: 4
Doingter 5N65 N-Channel Power MOSFET

Doingter 5N65 N-Channel Power MOSFET

Doingter 5N65 N-Channel Power MOSFET 5N65 MOSFET for high-speed switching, 650V, 5A, low on-state r..

Rs.22.42 (inc GST)
Rs.19.00 + GST

SKU: 2829 | DAE497
Stock: 3
GY-9250 9axis Sensor Module

GY-9250 9axis Sensor Module

GY-9250 9axis Sensor Module GY-9250 9axis Sensor Module combines gyroscope, accelerometer, and magn..

Rs.524.86 (inc GST)
Rs.444.80 + GST

SKU: 9669 | DAA497
Stock: 1

Tags: water flow sensor, flow sensor, digital sensor