{"id":44239,"date":"2024-03-14T04:14:31","date_gmt":"2024-03-13T17:44:31","guid":{"rendered":"https:\/\/onetemp.c2szky.ap-southeast-2.wpstaqhosting.com\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/"},"modified":"2026-10-26T14:41:54","modified_gmt":"2026-10-26T04:11:54","slug":"milesight-em300-mcs-wireless-magnetic-contact-switch","status":"publish","type":"product","link":"https:\/\/www.onetemp.com.au\/nz\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/","title":{"rendered":"Milesight EM300-MCS &#8211; Wireless Magnetic Contact Switch"},"content":{"rendered":"<h2>Advanced Magnetic Switch Sensor for Enhanced Security, Real-time Alerts, and Integrated Temperature &amp; Humidity Monitoring<\/h2>\n<p>The EM300-MCS is a high-performance <strong>magnetic switch sensor<\/strong>, expertly engineered for monitoring the status of doors and windows. It leverages cutting-edge <strong>LoRaWAN\u00ae technology to send real-time alerts<\/strong>, making it an essential tool for <strong>enhancing security in various settings such as factories, buildings, and other areas<\/strong>.<\/p>\n<p>This compact device stands out for its low power consumption, offering up to <strong>5 years of service on a single 4000 mAh battery<\/strong>. It is designed to <strong>work seamlessly with the Milesight LoRaWAN\u00ae gateway and the Milesight IoT Cloud solution<\/strong>, providing users with remote access to all sensor data. This integration allows for efficient management and visual monitoring of data, along with the convenience of <strong>receiving alarms directly on a mobile app<\/strong>.<\/p>\n<p>In addition to its core function, the EM300-MCS also<strong> features integrated temperature and humidity sensors<\/strong>. This added functionality increases its application scope, making it a <strong>valuable asset for home and office automation, as well as factory monitoring<\/strong>.<\/p>\n<p>With the EM300-MCS, you can <strong>instantly detect if any doors or windows are left open<\/strong>, reducing security risks. Its real-time alert system also provides <strong>immediate notifications of unauthorised entries<\/strong>, ensuring optimal security for your premises. With its robust construction and advanced features, the EM300-MCS offers a reliable solution for your security needs.<\/p>\n<h3>Harnessing LoRaWAN Connectivity for Enhanced Security and Monitoring Solutions<\/h3>\n<h3>Features<\/h3>\n<ul style=\"list-style-type: disc;\">\n<li>Boasts <strong>high sensitivity<\/strong> for door and window security detection, ensuring utmost safety.<\/li>\n<li>Integrated with <strong>temperature and humidity sensors<\/strong>, facilitating comprehensive environmental monitoring.<\/li>\n<li>Features <strong>ultra-wide-distance transmission<\/strong> with a <strong>line of sight up to 10km<\/strong>, promoting effective communication.<\/li>\n<li>Equipped with an <strong>IP67 UV-resistant and waterproof enclosure<\/strong>, perfect for use in harsh environmental conditions.<\/li>\n<li>Incorporates a <strong>built-in 4000 mAh replaceable battery<\/strong> that can function for over five years without replacement.<\/li>\n<li>Capable of<strong> locally storing up to 3,000 historical records<\/strong> and supports retransmission to mitigate data loss.<\/li>\n<li>Supports the <strong>Milesight D2D protocol<\/strong>, enabling ultra-low latency and direct control without the need for gateways.<\/li>\n<li>Fitted with <strong>NFC for effortless configuration<\/strong>.<\/li>\n<li><strong>Compliant with standard LoRaWAN\u00ae gateways<\/strong> and network servers, ensuring seamless integration.<\/li>\n<li>Allows quick and easy <strong>management through the Milesight IoT Cloud solution<\/strong>.<\/li>\n<\/ul>\n<h3>Integrating High-Sensitivity and Customisable\u00a0Alarms for Comprehensive Security<\/h3>\n<p>Combining the power of high-sensitivity magnetic contact switches with the <strong>flexibility of advanced alarm settings<\/strong>, we offer a <strong>comprehensive security solution<\/strong> that caters to a variety of scenarios. Our magnetic contact switch is designed to alert you in real-time of any unauthorised entries, detecting open\/close events within a <strong>sensing distance of 20 to 30 mm for rapid and accurate responses<\/strong> to potential breaches. To further enhance your security management, our advanced alarm settings allow you to <strong>customise report intervals and times, ensuring a highly adaptable solution<\/strong> tailored to your specific needs.<\/p>\n<h3>Comprehensive Environmental Monitoring with Smart Sensor Functionality<\/h3>\n<p>The EM300-MCS is a versatile device, equipped with an additional two sensors to provide comprehensive environmental monitoring. It accurately <strong>measures temperature with a variance of just + 0.3\u00b0C<\/strong> within the range of 0\u00b0C to 70\u00b0C, ensuring precise temperature tracking. Additionally, it offers <strong>accurate humidity detection<\/strong>, capable of <strong>detecting variations of + 3%<\/strong> within the range of 10% to 90%. This triple functionality in one device ensures optimal temperature and humidity levels, providing you with a <strong>holistic understanding of your environment<\/strong>.<\/p>\n<h3>Experience Direct, Ultra-Low Latency Control with Milesight D2D Protocol<\/h3>\n<p>Harness the power of Milesight&#8217;s\u00a0<strong>D2D protocol to enjoy ultra-low latency<\/strong> and direct <strong>control over your devices without the need for gateways<\/strong>. This advanced protocol, developed by Milesight, enables seamless transmission among Milesight devices. This puts remote\u00a0monitoring at your fingertips, providing an unparalleled level of convenience and responsiveness.<\/p>","protected":false},"excerpt":{"rendered":"<p>The EM300-MCS is a superior magnetic switch sensor, designed for real-time monitoring of doors and windows using advanced LoRaWAN\u00ae technology. Integrated with temperature and humidity sensors, it is ideal for home automation, office, and factory monitoring. Offering seamless integration with the Milesight IoT Cloud solution, it ensures optimal security with immediate alerts on any unauthorised access.<\/p>\n<h3>All LoRaWAN sensors require a gateway and software for operation. See useful links below to explore<\/h3>\n<h4>Unsure what you need? <a href=\"https:\/\/www.onetemp.com.au\/nz\/contact-us\/\" target=\"_blank\" rel=\"noopener\">Contact us or request a call back<\/a><\/h4>\n<p>&nbsp;<\/p>","protected":false},"featured_media":31254,"template":"","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"inline_featured_image":false,"_exactmetrics_skip_tracking":false,"_monsterinsights_skip_tracking":false},"product_brand":[],"product_cat":[15],"product_tag":[],"application":[369],"connectivity-output":[81,82,86],"environment":[67],"instrument-type":[213,330,225],"manufacturer":[28],"measurement-input":[121,130,164],"class_list":["post-44239","product","type-product","status-publish","has-post-thumbnail","product_cat-products","application-warehousing","connectivity-output-lorawan","connectivity-output-nfc","connectivity-output-wireless","environment-indoor-monitoring","instrument-type-sensors","instrument-type-smart-sensor","instrument-type-wireless-sensor","manufacturer-milesight","measurement-input-humidity","measurement-input-light-par","measurement-input-temperature","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"composite_virtual":false,"composite_aggregate_weight":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"bundle_sells_title":"","bundle_sells_discount":"","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Milesight EM300-MCS - Wireless Magnetic Contact Switch - OneTemp<\/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:\/\/www.onetemp.com.au\/nz\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Milesight EM300-MCS - Wireless Magnetic Contact Switch - OneTemp\" \/>\n<meta property=\"og:description\" content=\"The EM300-MCS is a superior magnetic switch sensor, designed for real-time monitoring of doors and windows using advanced LoRaWAN\u00ae technology. Integrated with temperature and humidity sensors, it is ideal for home automation, office, and factory monitoring. Offering seamless integration with the Milesight IoT Cloud solution, it ensures optimal security with immediate alerts on any unauthorised access. All LoRaWAN sensors require a gateway and software for operation. See useful links below to explore Unsure what you need? Contact us or request a call back &nbsp;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.onetemp.com.au\/nz\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/\" \/>\n<meta property=\"og:site_name\" content=\"OneTemp\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/OneTempAust\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-26T04:11:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/10\/EM300-MCS-Magnetic-Contact-Switch.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\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=\"6 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Milesight EM300-MCS - Wireless Magnetic Contact Switch - OneTemp","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:\/\/www.onetemp.com.au\/nz\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/","og_locale":"en_US","og_type":"article","og_title":"Milesight EM300-MCS - Wireless Magnetic Contact Switch - OneTemp","og_description":"The EM300-MCS is a superior magnetic switch sensor, designed for real-time monitoring of doors and windows using advanced LoRaWAN\u00ae technology. Integrated with temperature and humidity sensors, it is ideal for home automation, office, and factory monitoring. Offering seamless integration with the Milesight IoT Cloud solution, it ensures optimal security with immediate alerts on any unauthorised access. All LoRaWAN sensors require a gateway and software for operation. See useful links below to explore Unsure what you need? Contact us or request a call back &nbsp;","og_url":"https:\/\/www.onetemp.com.au\/nz\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/","og_site_name":"OneTemp","article_publisher":"https:\/\/www.facebook.com\/OneTempAust\/","article_modified_time":"2026-10-26T04:11:54+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/10\/EM300-MCS-Magnetic-Contact-Switch.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["WebPage","ItemPage"],"@id":"https:\/\/www.onetemp.com.au\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/","url":"https:\/\/www.onetemp.com.au\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/","name":"Milesight EM300-MCS - Wireless Magnetic Contact Switch - OneTemp","isPartOf":{"@id":"https:\/\/www.onetemp.com.au\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.onetemp.com.au\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/#primaryimage"},"image":{"@id":"https:\/\/www.onetemp.com.au\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/#primaryimage"},"thumbnailUrl":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/10\/EM300-MCS-Magnetic-Contact-Switch.png","datePublished":"2024-03-13T17:44:31+00:00","dateModified":"2026-10-26T04:11:54+00:00","breadcrumb":{"@id":"https:\/\/www.onetemp.com.au\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/#breadcrumb"},"inLanguage":"en-NZ","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.onetemp.com.au\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/"]}]},{"@type":"ImageObject","inLanguage":"en-NZ","@id":"https:\/\/www.onetemp.com.au\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/#primaryimage","url":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/10\/EM300-MCS-Magnetic-Contact-Switch.png","contentUrl":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/10\/EM300-MCS-Magnetic-Contact-Switch.png","width":1200,"height":675},{"@type":"BreadcrumbList","@id":"https:\/\/www.onetemp.com.au\/product\/milesight-em300-mcs-wireless-magnetic-contact-switch\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"","item":"https:\/\/www.onetemp.com.au\/nz"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/www.onetemp.com.au\/shop\/"},{"@type":"ListItem","position":3,"name":"Milesight EM300-MCS &#8211; Wireless Magnetic Contact Switch"}]},{"@type":"WebSite","@id":"https:\/\/www.onetemp.com.au\/#website","url":"https:\/\/www.onetemp.com.au\/","name":"OneTemp New Zealand","description":"","publisher":{"@id":"https:\/\/www.onetemp.com.au\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.onetemp.com.au\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-NZ"},{"@type":"Organization","@id":"https:\/\/www.onetemp.com.au\/#organization","name":"OneTemp New Zealand","url":"https:\/\/www.onetemp.com.au\/","logo":{"@type":"ImageObject","inLanguage":"en-NZ","@id":"https:\/\/www.onetemp.com.au\/#\/schema\/logo\/image\/","url":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2025\/04\/OneTemp-Logo.jpeg","contentUrl":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2025\/04\/OneTemp-Logo.jpeg","width":800,"height":153,"caption":"OneTemp"},"image":{"@id":"https:\/\/www.onetemp.com.au\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/OneTempAust\/","https:\/\/au.linkedin.com\/company\/onetemp-pty-ltd"]}]}},"_links":{"self":[{"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product\/44239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/media\/31254"}],"wp:attachment":[{"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/media?parent=44239"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product_brand?post=44239"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product_cat?post=44239"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product_tag?post=44239"},{"taxonomy":"application","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/application?post=44239"},{"taxonomy":"connectivity-output","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/connectivity-output?post=44239"},{"taxonomy":"environment","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/environment?post=44239"},{"taxonomy":"instrument-type","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/instrument-type?post=44239"},{"taxonomy":"manufacturer","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/manufacturer?post=44239"},{"taxonomy":"measurement-input","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/measurement-input?post=44239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}