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YF-S402 G1/4" PVC Water Flow Sensor


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  • Stock: 5

    Availability: InStock priceValidUntil: 2026-10-21

  • Brand: Generic
  • SKU: 1632 | DAB255

Availability: InStock priceValidUntil: 2026-10-21

  • 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

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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.
What payment methods do you accept?
We accept UPI, cards, netbanking, and other checkout options shown on the payment page.
Can you share a proforma invoice / quotation before I pay?
Yes — we can share a quotation/proforma invoice. Send: part number(s), quantity, your GSTIN (if applicable), billing name/address, and delivery PIN code.
If I order the same parts again later, will they match?
We try to maintain consistency, but supply can change. If matching lot/brand matters, tell us in advance and we’ll advise what’s available.
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Tags: water flow sensor, flow sensor, digital sensor