{"id":4067,"date":"2026-06-09T04:43:35","date_gmt":"2026-06-09T04:43:35","guid":{"rendered":"https:\/\/projectkitsandparts.com\/?post_type=product&#038;p=4067"},"modified":"2026-06-09T04:53:02","modified_gmt":"2026-06-09T04:53:02","slug":"rain-alarm","status":"publish","type":"product","link":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/","title":{"rendered":"Rain Alarm"},"content":{"rendered":"<p>Rain Alarm \u00a0are widely used in <b>automation<\/b>, <b>weather monitoring<\/b>, and <b>safety systems<\/b>. The basic idea is simple: detect <b>rainfall<\/b> using a <b>rain-sensing module<\/b> or custom-made conductive surface, and use that detection to <b>trigger a device or alert<\/b>.<\/p>\n<p>The most common type of rain sensor consists of a <b>rain detection board<\/b> (with exposed conductive tracks) and a <b>signal processing unit<\/b> (like a comparator or microcontroller). When water bridges the conductive tracks, the circuit detects the change in resistance and signals a rain event.<\/p>\n<p>Rain sensors can be used in:<\/p>\n<ul>\n<li>Automatic <b>wiper systems<\/b><\/li>\n<li><b>Irrigation systems<\/b><\/li>\n<li><b>Weather stations<\/b><\/li>\n<li><b>Skylights<\/b> and <b>window closers<\/b><\/li>\n<\/ul>\n<p><b>Applications:<\/b><\/p>\n<p>1.<b>Automatic Wiper Systems<\/b><\/p>\n<p>1.Detect rain and activate car wipers.<\/p>\n<p>2.<b>Smart Irrigation<\/b><\/p>\n<p>1.Stop watering plants when it&#8217;s raining.<\/p>\n<p>3.<b>Skylight or Window Closers<\/b><\/p>\n<p>1.Automatically shut when rain is detected.<\/p>\n<p>4.<b>Weather Monitoring<\/b><\/p>\n<p>1.Used in personal or industrial weather stations.<\/p>\n<p>5.<b>Solar Panel Protection<\/b><\/p>\n<p>1.Retract panels or activate covers in rain.<\/p>\n<p>6.<b>Alarms and Alerts<\/b><\/p>\n<p>1.Notify you when rain starts (useful in workshops, clothes drying areas, etc.)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A <b>Rain Sensor<\/b> is an electronic device that detects the presence of rain or water droplets and triggers a response \u2014 such as activating an alarm, switching off a window motor, or sending a signal to a controller.<\/p>\n","protected":false},"featured_media":4068,"template":"","meta":[],"product_cat":[467,468],"product_tag":[],"class_list":["post-4067","product","type-product","status-publish","has-post-thumbnail","product_brand-dolphinlabs","product_cat-electronics-project","product_cat-zero-pcb-project","first","instock","taxable","shipping-taxable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rain Alarm - Projectkitsandparts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rain Alarm - Projectkitsandparts\" \/>\n<meta property=\"og:description\" content=\"A Rain Sensor is an electronic device that detects the presence of rain or water droplets and triggers a response \u2014 such as activating an alarm, switching off a window motor, or sending a signal to a controller.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/\" \/>\n<meta property=\"og:site_name\" content=\"Projectkitsandparts\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-09T04:53:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2026\/06\/rain_Alarm.png\" \/>\n\t<meta property=\"og:image:width\" content=\"577\" \/>\n\t<meta property=\"og:image:height\" content=\"433\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/product\\\/rain-alarm\\\/\",\"url\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/product\\\/rain-alarm\\\/\",\"name\":\"Rain Alarm - Projectkitsandparts\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/product\\\/rain-alarm\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/product\\\/rain-alarm\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/projectkitsandparts.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/rain_Alarm.png\",\"datePublished\":\"2026-06-09T04:43:35+00:00\",\"dateModified\":\"2026-06-09T04:53:02+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/product\\\/rain-alarm\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/product\\\/rain-alarm\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/product\\\/rain-alarm\\\/#primaryimage\",\"url\":\"https:\\\/\\\/projectkitsandparts.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/rain_Alarm.png\",\"contentUrl\":\"https:\\\/\\\/projectkitsandparts.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/rain_Alarm.png\",\"width\":577,\"height\":433,\"caption\":\"A reliable rain alarm circuit that automatically triggers a buzzer and LED indicator when moisture is detected on the sensor probe.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/product\\\/rain-alarm\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/projectkitsandparts.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/shop-2\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Rain Alarm\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/#website\",\"url\":\"https:\\\/\\\/projectkitsandparts.com\\\/\",\"name\":\"Projectkitsandparts\",\"description\":\"Project kits and parts for everybody\",\"publisher\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/projectkitsandparts.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/#organization\",\"name\":\"Projectkitsandparts\",\"url\":\"https:\\\/\\\/projectkitsandparts.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/projectkitsandparts.com\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/logo-5.png\",\"contentUrl\":\"https:\\\/\\\/projectkitsandparts.com\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/logo-5.png\",\"width\":118,\"height\":103,\"caption\":\"Projectkitsandparts\"},\"image\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Rain Alarm - Projectkitsandparts","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/","og_locale":"en_US","og_type":"article","og_title":"Rain Alarm - Projectkitsandparts","og_description":"A Rain Sensor is an electronic device that detects the presence of rain or water droplets and triggers a response \u2014 such as activating an alarm, switching off a window motor, or sending a signal to a controller.","og_url":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/","og_site_name":"Projectkitsandparts","article_modified_time":"2026-06-09T04:53:02+00:00","og_image":[{"width":577,"height":433,"url":"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2026\/06\/rain_Alarm.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/","url":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/","name":"Rain Alarm - Projectkitsandparts","isPartOf":{"@id":"https:\/\/projectkitsandparts.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/#primaryimage"},"image":{"@id":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/#primaryimage"},"thumbnailUrl":"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2026\/06\/rain_Alarm.png","datePublished":"2026-06-09T04:43:35+00:00","dateModified":"2026-06-09T04:53:02+00:00","breadcrumb":{"@id":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/#primaryimage","url":"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2026\/06\/rain_Alarm.png","contentUrl":"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2026\/06\/rain_Alarm.png","width":577,"height":433,"caption":"A reliable rain alarm circuit that automatically triggers a buzzer and LED indicator when moisture is detected on the sensor probe."},{"@type":"BreadcrumbList","@id":"https:\/\/projectkitsandparts.com\/index.php\/product\/rain-alarm\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/projectkitsandparts.com\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/projectkitsandparts.com\/index.php\/shop-2\/"},{"@type":"ListItem","position":3,"name":"Rain Alarm"}]},{"@type":"WebSite","@id":"https:\/\/projectkitsandparts.com\/#website","url":"https:\/\/projectkitsandparts.com\/","name":"Projectkitsandparts","description":"Project kits and parts for everybody","publisher":{"@id":"https:\/\/projectkitsandparts.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/projectkitsandparts.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/projectkitsandparts.com\/#organization","name":"Projectkitsandparts","url":"https:\/\/projectkitsandparts.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/projectkitsandparts.com\/#\/schema\/logo\/image\/","url":"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/01\/logo-5.png","contentUrl":"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/01\/logo-5.png","width":118,"height":103,"caption":"Projectkitsandparts"},"image":{"@id":"https:\/\/projectkitsandparts.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/product\/4067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/media\/4068"}],"wp:attachment":[{"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/media?parent=4067"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=4067"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=4067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}