{"product_id":"1-4-inch-water-flow-sensor-yf-s402","title":"1\/4 Inch Water Flow Sensor YF - S402","description":"\u003cmeta name=\"description\" content=\"Buy 14 Inch Water Flow Sensor YF S402 online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003e1\/4 Inch Water Flow Sensor YF-S402\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe YF-S402 is a precision water flow sensor designed for accurate fluid measurement in compact applications. This 1\/4 inch flow meter is ideal for projects requiring reliable water flow detection and monitoring.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeature\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHall Effect Flow Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePipe Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/4 Inch (6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.3 - 6 L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 - 0.8 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 - 80 degreesC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Signal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Pulse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-3-5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic Body with Stainless Steel Rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eG1\/4 Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupport\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24\/7 Email \u0026amp; WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Choose YF-S402?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eHighly Accurate\u003c\/strong\u003e - Precise flow measurement for critical applications\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompact Design\u003c\/strong\u003e - Fits easily into tight spaces\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable Construction\u003c\/strong\u003e - Stainless steel components for longevity\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Integration\u003c\/strong\u003e - Simple digital pulse output for microcontroller projects\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCost-Effective\u003c\/strong\u003e - Affordable precision sensor solution\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e100% Authentic\u003c\/strong\u003e - Sourced from trusted authorized distributors\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast Delivery\u003c\/strong\u003e - 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Support\u003c\/strong\u003e - Full technical assistance included\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDIY \u0026amp; Hobbyist Projects\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eArduino\/Raspberry Pi water monitoring systems\u003c\/li\u003e\n\u003cli\u003eSmart irrigation controllers\u003c\/li\u003e\n\u003cli\u003eAquarium flow monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eIndustrial \u0026amp; Commercial\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWater dispensing systems\u003c\/li\u003e\n\u003cli\u003eHVAC cooling loops\u003c\/li\u003e\n\u003cli\u003eChemical dosing systems\u003c\/li\u003e\n\u003cli\u003eFuel flow measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eEducational\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIoT and embedded systems learning\u003c\/li\u003e\n\u003cli\u003eSensor integration projects\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHall Effect Technology\u003c\/strong\u003e - Non-contact, reliable pulse generation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Consumption\u003c\/strong\u003e - Ideal for battery-powered applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Flow Range\u003c\/strong\u003e - Suitable for various flow rates (0.3-6 L\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Stable\u003c\/strong\u003e - Consistent performance across operating range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Calibration\u003c\/strong\u003e - Linear output for straightforward calculations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x YF-S402 Water Flow Sensor\u003c\/li\u003e\n\u003cli\u003eConnection cables\/connectors\u003c\/li\u003e\n\u003cli\u003eTechnical documentation \u0026amp; datasheet\u003c\/li\u003e\n\u003cli\u003eInstallation guide\u003c\/li\u003e\n\u003cli\u003eSupport materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\n\u003cp\u003eThe YF-S402 uses a \u003cstrong\u003eHall Effect sensor\u003c\/strong\u003e to detect the rotation of an internal rotor as water flows through it. Each complete rotation generates a digital pulse, allowing you to calculate flow rate by counting pulses over time.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFormula:\u003c\/strong\u003e Flow Rate (L\/min) = Pulse Frequency (Hz) \/ Calibration Factor (typically 5.5 Hz per L\/min)\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepare Connection\u003c\/strong\u003e - Ensure 1\/4\" thread compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Sensor\u003c\/strong\u003e - Use thread sealant tape for leak-proof connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect Output\u003c\/strong\u003e - Attach signal wires to microcontroller input pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply\u003c\/strong\u003e - Typical 5V operation (check datasheet)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration\u003c\/strong\u003e - Configure pulse-to-flow-rate conversion in your code\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this sensor 100% authentic?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, absolutely. We source directly from authorized distributors with full authentication verification. Each unit comes with original packaging and documentation.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat's the warranty coverage?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e7-day warranty on manufacturing defects covering all manufacturing defects. We also offer a 7-day replacement guarantee for defective units.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eHow quickly will it ship?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e1-5 business days to most locations in India from our Bengaluru warehouse. Express shipping available on request.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan I use this with Arduino\/Raspberry Pi?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! The digital pulse output is compatible with any microcontroller. We provide code examples and integration guides with your purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat's the maximum flow rate it can measure?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe YF-S402 is rated for 0.3 - 6 L\/min. For higher flow rates, consider the YF-S201 or YF-S303 variants.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eDo you offer technical support?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, complete 24\/7 technical support via email and WhatsApp. Our engineers can help with installation, calibration, and integration.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat's your return policy?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only with full refund or replacement. Unopened items accepted within 30 days.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eAre bulk\/wholesale discounts available?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! Orders of 10+ units qualify for special wholesale pricing. Contact us for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs calibration required?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eNo calibration needed out of the box. The sensor comes pre-calibrated. Use the standard conversion factor (5.5 Hz per L\/min) in your calculations.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eCustomer Support\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e support@thetechdepot.in\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp:\u003c\/strong\u003e Available 24\/7\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Help:\u003c\/strong\u003e Free consultation included\u003c\/p\u003e\n \u003cem\u003e\u003c\/em\u003e\n\u003ch2\u003eBuy 1\/4 Inch Water Flow Sensor YF - S402 Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003e1\/4 Inch Water Flow Sensor YF - S402\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003e1\/4 Inch Water Flow Sensor YF - S402\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003e1\/4 Inch Water Flow Sensor YF - S402\u003c\/strong\u003e at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48745354592513,"sku":"TTD-16414","price":315.87,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/fec3ee4390dc097967874f0d863b0690.png?v=1778084898","url":"https:\/\/techdepot.in\/products\/1-4-inch-water-flow-sensor-yf-s402","provider":"Tech Depot India","version":"1.0","type":"link"}