{"id":3575,"date":"2026-05-14T18:22:00","date_gmt":"2026-05-14T12:52:00","guid":{"rendered":"https:\/\/vihaaniotgateway.in\/?post_type=product&#038;p=3575"},"modified":"2026-05-15T23:20:42","modified_gmt":"2026-05-15T17:50:42","slug":"yf-s201-1-2-inch-water-flow-sensor-hall-effect-flow-meter","status":"publish","type":"product","link":"https:\/\/vihaaniotgateway.in\/index.php\/product\/yf-s201-1-2-inch-water-flow-sensor-hall-effect-flow-meter\/","title":{"rendered":"YF-S201 1\/2 Inch Water Flow Sensor \u2013 Hall Effect Flow Meter for Arduino, ESP32 &#038; IoT Projects"},"content":{"rendered":"<div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class=\"\" data-turn-id-container=\"request-WEB:1379ec96-6562-4c47-85d9-3259217b8dae-74\" data-is-intersecting=\"true\">\n<div class=\"relative w-full overflow-visible\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:1379ec96-6562-4c47-85d9-3259217b8dae-74\" data-turn-id-container=\"request-WEB:1379ec96-6562-4c47-85d9-3259217b8dae-74\" data-testid=\"conversation-turn-4\" data-scroll-anchor=\"false\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"af9c16e5-ce44-4648-997e-4d8b867bbb9e\" data-message-model-slug=\"gpt-5-3-mini\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<p data-start=\"0\" data-end=\"355\">The <strong data-start=\"4\" data-end=\"42\">YF-S201 1\/2 Inch Water Flow Sensor<\/strong> is a reliable and cost-effective solution for measuring liquid flow in water monitoring and IoT-based automation systems. It works on the Hall Effect principle, where an internal rotor with a magnet generates pulses proportional to the water flow rate, allowing accurate measurement of flow in liters per minute.<\/p>\n<p data-start=\"357\" data-end=\"734\">This sensor is widely used in DIY electronics, smart irrigation systems, water dispensers, and industrial flow monitoring projects. It is compatible with popular development platforms like <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Arduino<\/span><\/span> boards and can also be integrated with microcontrollers such as <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">ESP32 microcontroller<\/span><\/span> for IoT applications and cloud-based monitoring.<\/p>\n<p data-start=\"736\" data-end=\"960\">With its simple 3-wire interface (VCC, GND, and signal output), the YF-S201 can be easily connected to any digital input pin. The pulse output can be read and converted into real-time flow rate data using simple programming.<\/p>\n<p data-start=\"962\" data-end=\"979\"><strong data-start=\"962\" data-end=\"979\">Key Features:<\/strong><\/p>\n<ul data-start=\"980\" data-end=\"1220\">\n<li data-section-id=\"1yglmow\" data-start=\"980\" data-end=\"1018\">1\/2 inch standard water inlet\/outlet<\/li>\n<li data-section-id=\"1k86xkd\" data-start=\"1019\" data-end=\"1078\">Hall effect-based pulse output for accurate measurement<\/li>\n<li data-section-id=\"1xllxqn\" data-start=\"1079\" data-end=\"1130\">Flow range suitable for home and industrial use<\/li>\n<li data-section-id=\"1safevj\" data-start=\"1131\" data-end=\"1173\">Easy integration with microcontrollers<\/li>\n<li data-section-id=\"ke9xyj\" data-start=\"1174\" data-end=\"1220\">Durable plastic body for long service life<\/li>\n<\/ul>\n<p data-start=\"1222\" data-end=\"1385\" data-is-last-node=\"\" data-is-only-node=\"\">This sensor is ideal for smart water management systems, leakage detection, automated billing systems, and IoT projects under the <strong data-start=\"1352\" data-end=\"1374\">Vihaan IoT Gateway<\/strong> ecosystem.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"z-0 flex min-h-[46px] justify-start\"><\/div>\n<div class=\"mt-3 w-full empty:hidden\">\n<div class=\"text-center\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<div class=\"contents\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\" aria-hidden=\"true\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>YF-S201 1\/2 inch water flow sensor using Hall effect, outputs pulse signals for flow measurement; ideal for Arduino, ESP32 and IoT projects.<\/p>\n","protected":false},"featured_media":3617,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_brand":[],"product_cat":[73],"product_tag":[],"class_list":["post-3575","product","type-product","status-publish","has-post-thumbnail","product_cat-sensors-and-modules","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"YF-S201 1\/2 inch water flow sensor using Hall effect, outputs pulse signals for flow measurement; ideal for Arduino, ESP32 and IoT projects.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"google-site-verification\" content=\"R1Q6mNFnOHoEWYNqLhCvHAKo2oAB56wclmI1Gsdqy7s\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/vihaaniotgateway.in\/index.php\/product\/yf-s201-1-2-inch-water-flow-sensor-hall-effect-flow-meter\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO Pro (AIOSEO) 4.9.9\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Vihaan IoT Gateway - Connecting Possibilities, Empowering Innovation.\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"YF-S201 1\/2 Inch Water Flow Sensor \u2013 Hall Effect Flow Meter for Arduino, ESP32 &amp; 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