{"id":331,"date":"2025-11-20T19:51:46","date_gmt":"2025-11-20T19:51:46","guid":{"rendered":"https:\/\/hamtechtechnologies.com\/index.php\/product\/yf-s201-flow-sensor\/"},"modified":"2025-11-30T10:01:31","modified_gmt":"2025-11-30T10:01:31","slug":"yf-s401-flow-sensor","status":"publish","type":"product","link":"https:\/\/hamtechtechnologies.com\/index.php\/product\/yf-s401-flow-sensor\/","title":{"rendered":"YF-S401 Flow Sensor"},"content":{"rendered":"<p data-start=\"377\" data-end=\"851\">The <strong data-start=\"410\" data-end=\"433\">YF-S401 Flow Sensor<\/strong> uses a Hall-effect sensor to detect the rotation of a turbine inside the module. Each rotation generates a pulse, which can be counted by a microcontroller to measure water flow rate in liters per minute. It is widely used in IoT water monitoring, water dispensers, irrigation systems, and DIY smart home projects. The sensor operates at low voltages, is easy to interface, and provides real-time flow measurements.<\/p>\n<p data-start=\"853\" data-end=\"871\"><strong data-start=\"853\" data-end=\"869\">Key Features<\/strong><\/p>\n<ul data-start=\"872\" data-end=\"1170\">\n<li data-start=\"872\" data-end=\"915\">\n<p data-start=\"874\" data-end=\"915\">Hall-effect sensor-based flow detection<\/p>\n<\/li>\n<li data-start=\"916\" data-end=\"960\">\n<p data-start=\"918\" data-end=\"960\">Measures water flow in liters per minute<\/p>\n<\/li>\n<li data-start=\"961\" data-end=\"1009\">\n<p data-start=\"963\" data-end=\"1009\">Pulse output for microcontroller interfacing<\/p>\n<\/li>\n<li data-start=\"1010\" data-end=\"1041\">\n<p data-start=\"1012\" data-end=\"1041\">Operating voltage: 5\u201318V DC<\/p>\n<\/li>\n<li data-start=\"1042\" data-end=\"1068\">\n<p data-start=\"1044\" data-end=\"1068\">Flow range: 1\u201330 L\/min<\/p>\n<\/li>\n<li data-start=\"1069\" data-end=\"1117\">\n<p data-start=\"1071\" data-end=\"1117\">Compact and lightweight for easy integration<\/p>\n<\/li>\n<li data-start=\"1118\" data-end=\"1170\">\n<p data-start=\"1120\" data-end=\"1170\">Compatible with Arduino, ESP32, and Raspberry Pi<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1172\" data-end=\"1186\"><strong data-start=\"1172\" data-end=\"1184\">Variants<\/strong><\/p>\n<ul data-start=\"1187\" data-end=\"1274\">\n<li data-start=\"1187\" data-end=\"1219\">\n<p data-start=\"1189\" data-end=\"1219\">YF-S401 Standard Flow Sensor<\/p>\n<\/li>\n<li data-start=\"1220\" data-end=\"1274\">\n<p data-start=\"1222\" data-end=\"1274\">YF-S401 with 1\/2\u2033 or 3\/4\u2033 G1\/2 threaded connectors<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1276\" data-end=\"1296\"><strong data-start=\"1276\" data-end=\"1294\">Specifications<\/strong><\/p>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"1298\" data-end=\"1606\">\n<thead data-start=\"1298\" data-end=\"1321\">\n<tr data-start=\"1298\" data-end=\"1321\">\n<th data-start=\"1298\" data-end=\"1308\" data-col-size=\"sm\">Feature<\/th>\n<th data-start=\"1308\" data-end=\"1321\" data-col-size=\"sm\">Details<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1346\" data-end=\"1606\">\n<tr data-start=\"1346\" data-end=\"1377\">\n<td data-start=\"1346\" data-end=\"1360\" data-col-size=\"sm\">Sensor Type<\/td>\n<td data-start=\"1360\" data-end=\"1377\" data-col-size=\"sm\">Hall-effect<\/td>\n<\/tr>\n<tr data-start=\"1378\" data-end=\"1412\">\n<td data-start=\"1378\" data-end=\"1398\" data-col-size=\"sm\">Operating Voltage<\/td>\n<td data-start=\"1398\" data-end=\"1412\" data-col-size=\"sm\">5\u201318V DC<\/td>\n<\/tr>\n<tr data-start=\"1413\" data-end=\"1442\">\n<td data-start=\"1413\" data-end=\"1426\" data-col-size=\"sm\">Flow Range<\/td>\n<td data-start=\"1426\" data-end=\"1442\" data-col-size=\"sm\">1\u201330 L\/min<\/td>\n<\/tr>\n<tr data-start=\"1443\" data-end=\"1468\">\n<td data-start=\"1443\" data-end=\"1457\" data-col-size=\"sm\">Output Type<\/td>\n<td data-start=\"1457\" data-end=\"1468\" data-col-size=\"sm\">Pulse<\/td>\n<\/tr>\n<tr data-start=\"1469\" data-end=\"1498\">\n<td data-start=\"1469\" data-end=\"1484\" data-col-size=\"sm\">Max Pressure<\/td>\n<td data-start=\"1484\" data-end=\"1498\" data-col-size=\"sm\">1.75 MPa<\/td>\n<\/tr>\n<tr data-start=\"1499\" data-end=\"1535\">\n<td data-start=\"1499\" data-end=\"1523\" data-col-size=\"sm\">Operating Temperature<\/td>\n<td data-start=\"1523\" data-end=\"1535\" data-col-size=\"sm\">0\u201380\u00b0C<\/td>\n<\/tr>\n<tr data-start=\"1536\" data-end=\"1571\">\n<td data-start=\"1536\" data-end=\"1550\" data-col-size=\"sm\">Thread Size<\/td>\n<td data-start=\"1550\" data-end=\"1571\" data-col-size=\"sm\">G1\/2 (standard)<\/td>\n<\/tr>\n<tr data-start=\"1572\" data-end=\"1606\">\n<td data-start=\"1572\" data-end=\"1585\" data-col-size=\"sm\">Dimensions<\/td>\n<td data-start=\"1585\" data-end=\"1606\" data-col-size=\"sm\">72 \u00d7 35 \u00d7 27 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"1608\" data-end=\"1626\"><strong data-start=\"1608\" data-end=\"1624\">Applications<\/strong><\/p>\n<ul data-start=\"1627\" data-end=\"1852\">\n<li data-start=\"1627\" data-end=\"1668\">\n<p data-start=\"1629\" data-end=\"1668\">Water flow monitoring and measurement<\/p>\n<\/li>\n<li data-start=\"1669\" data-end=\"1708\">\n<p data-start=\"1671\" data-end=\"1708\">Smart water meters and IoT projects<\/p>\n<\/li>\n<li data-start=\"1709\" data-end=\"1754\">\n<p data-start=\"1711\" data-end=\"1754\">Irrigation and water distribution systems<\/p>\n<\/li>\n<li data-start=\"1755\" data-end=\"1798\">\n<p data-start=\"1757\" data-end=\"1798\">Water dispensers and filtration systems<\/p>\n<\/li>\n<li data-start=\"1799\" data-end=\"1852\">\n<p data-start=\"1801\" data-end=\"1852\">DIY liquid flow experiments with microcontrollers<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1854\" data-end=\"1888\"><strong data-start=\"1854\" data-end=\"1886\">Compatible Boards \/ Circuits<\/strong><\/p>\n<ul data-start=\"1889\" data-end=\"2015\">\n<li data-start=\"1889\" data-end=\"1916\">\n<p data-start=\"1891\" data-end=\"1916\">Arduino Uno, Mega, Nano<\/p>\n<\/li>\n<li data-start=\"1917\" data-end=\"1936\">\n<p data-start=\"1919\" data-end=\"1936\">ESP32 \/ ESP8266<\/p>\n<\/li>\n<li data-start=\"1937\" data-end=\"1964\">\n<p data-start=\"1939\" data-end=\"1964\">Raspberry Pi (via GPIO)<\/p>\n<\/li>\n<li data-start=\"1965\" data-end=\"2015\">\n<p data-start=\"1967\" data-end=\"2015\">Any microcontroller capable of counting pulses<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The <strong data-start=\"171\" data-end=\"194\">YF-S401 Flow Sensor<\/strong> is a compact, reliable liquid flow meter that outputs pulse signals corresponding to the rate of water flow, ideal for Arduino, ESP32, and Raspberry Pi water monitoring projects.<\/p>\n","protected":false},"featured_media":515,"comment_status":"open","ping_status":"closed","template":"","meta":{"postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""}},"product_brand":[],"product_cat":[353,363,356,413,106,403,22],"product_tag":[250,217,249],"class_list":{"0":"post-331","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-accessories","7":"product_cat-electronics","8":"product_cat-electronics-components","9":"product_cat-industrial-control-components","10":"product_cat-iot-components","11":"product_cat-modules-sensors","12":"product_cat-sensors","13":"product_tag-flow","14":"product_tag-sensor","15":"product_tag-yf-s201","17":"first","18":"instock","19":"taxable","20":"shipping-taxable","21":"purchasable","22":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product\/331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/comments?post=331"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/media\/515"}],"wp:attachment":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/media?parent=331"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=331"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=331"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}