{"id":45137,"date":"2024-06-06T07:12:02","date_gmt":"2024-06-05T21:42:02","guid":{"rendered":"https:\/\/onetemp.c2szky.ap-southeast-2.wpstaqhosting.com\/product\/milesight-em400-udl-ultrasonic-distance-level-sensor\/"},"modified":"2026-10-26T12:18:02","modified_gmt":"2026-10-26T01:48:02","slug":"milesight-em400-udl-ultrasonic-distance-level-sensor","status":"publish","type":"product","link":"https:\/\/www.onetemp.com.au\/nz\/product\/milesight-em400-udl-ultrasonic-distance-level-sensor\/","title":{"rendered":"Milesight EM400-UDL &#8211; Ultrasonic Distance\/Level Sensor"},"content":{"rendered":"<h2>Monitor Water &amp; Tank Levels With Unparalleled Accuracy<\/h2>\n<p>The EM400-UDL is a <strong>cutting-edge ultrasonic distance sensor<\/strong> designed specifically for outdoor applications. Whether you need to <strong>monitor water levels, tank fill levels, or detect the presence of objects,<\/strong> the EM400-UDL has you covered. With <strong>multiple sensors to choose from,<\/strong> each with their own detecting range, this sensor can meet a <strong>wide range of requirements.<\/strong><\/p>\n<p>Not only is the EM400-UDL built to withstand harsh environments with its <strong>high protection IP rating and waterproof enclosure,<\/strong> but it also boasts impressive battery life. With two 9000 mAh batteries, this sensor can <strong>work continuously for up to 10 years without needing a replacement.<\/strong><\/p>\n<p>Milesight offers <strong>two versions<\/strong> of the EM400-UDL to cater to<strong> different communication needs.<\/strong> The <strong>LoRaWAN\u00ae<\/strong> version can easily integrate with Milesight&#8217;s LoRaWAN\u00ae gateway and IoT Cloud solution, allowing for <strong>remote and visual management of all sensor data.<\/strong> On the other hand, the <strong>NB-IoT\/Cat.M version<\/strong> supports multiple application modes and is <strong>equipped with GNSS<\/strong> for tracking and security purposes.<\/p>\n<h3>Features<\/h3>\n<ul style=\"list-style-type: disc;\">\n<li>Selective probes with <strong>detecting ranges from 25 to 1000 cm<\/strong> for a wide range of applications<\/li>\n<li><strong>Two built-in 9000 mAh replaceable batteries<\/strong> that last up to 10 years without needing replacement<\/li>\n<li><strong>NTC temperature sensor<\/strong> for accurately detect sudden changes to <strong>minimise combustion risk<\/strong><\/li>\n<li><strong>Built-in 3-axis accelerometer<\/strong> sensor to monitor device tilt status<\/li>\n<li>Damp-proof coating and <strong>IP67 waterproof enclosure<\/strong> for outdoor use<\/li>\n<li><strong>NFC<\/strong> for convenient one-touch configuration<\/li>\n<\/ul>\n<h3>LoRaWAN\u00ae or NB-IoT: Tailor Your Experience with Two Communication Options<\/h3>\n<p>Choose from two options to suit your communication needs. The LoRaWAN\u00ae version can be seamlessly integrated with our Milesight LoRaWAN\u00ae gateway and IoT Cloud solution, giving you remote and visual management of all sensor data. The NB-IoT\/Cat.M version is perfect for compatibility with IoT platforms and even includes GNSS for tracking and security purposes.<\/p>\n<h3>Enhance Operations and Efficiency with EM400-UDL: The Perfect Solution for Diverse Applications<\/h3>\n<p>Discover the versatile power of EM400-UDL in both industrial and urban environments. Designed to deliver precise and trustworthy data, this exceptional tool is guaranteed to streamline operations and boost efficiency.<\/p>\n<p><strong>Applications include:<\/strong><\/p>\n<ul style=\"list-style-type: disc;\">\n<li>Monitoring boiler expansion,<\/li>\n<li>Tank and barn fill levels,<\/li>\n<li>Flood conditions,<\/li>\n<li>Sewer levels and more!<\/li>\n<\/ul>\n<h3>Non-Contact Distance Measurement<\/h3>\n<p>The EM400-UDL utilises ultrasonic distance detection to deliver a stable and reliable performance when detecting various solid or liquid mediums. With its <strong>non-contact distance measurement capability,<\/strong> the probe of the EM400-UDL <strong>remains unaffected and free from contamination, ensuring highly accurate measurements.<\/strong><\/p>\n<h3>Enhanced Temperature and Tilt Monitoring for Improved Device Performance<\/h3>\n<p><strong>Monitor Device Tilt Status<\/strong><\/p>\n<p>The EM400-UDL features a built-in <strong>3-axis accelerometer<\/strong> to continuously monitor the tilt status of the device. Receive real-time alerts to ensure optimal positioning.<\/p>\n<p><strong>Precise Temperature Monitoring<\/strong><\/p>\n<p>Stay one step ahead of potential combustion hazards with the EM400-UDL&#8217;s<strong> integrated NTC thermistor.<\/strong> This cutting-edge technology allows for <strong>efficient temperature monitoring,<\/strong> promptly<strong> alerting users<\/strong> to any sudden temperature fluctuations.<\/p>\n<h3>With value-added temperature and tilt monitoring capabilities, the EM400-UDL enhances the safety and efficiency of your devices!<\/h3>\n<h3><\/h3>\n<h3>IMPORTANT &#8211; Sensor Operation<\/h3>\n<p><strong>Please note: <\/strong>For wireless network capabilities, an applicable Gateway is required to utilise the IoT <a href=\"\/nz\/product\/milesight-iot-cloud-software-remote-monitoring-control\/\">Cloud<\/a> software as demonstrated below.<\/p>","protected":false},"excerpt":{"rendered":"<p>The EM400-UDL is a cutting-edge ultrasonic distance and level sensor designed specifically for outdoor applications such as water level, tank fill levels in silos and more. It offers two versions with different communication options, plus high protection IP rating, waterproof enclosure, long battery life and GNSS tracking.<\/p>\n<p>&nbsp;<\/p>\n<div class=\"variant-info\">\n<div class=\"attributes-wrapper\">\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<h4><strong>\u00a0<\/strong><\/h4>\n<\/div>\n<\/div>","protected":false},"featured_media":33383,"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":[],"connectivity-output":[81,82,86],"environment":[],"instrument-type":[213,225,330],"manufacturer":[28],"measurement-input":[109,127],"class_list":["post-45137","product","type-product","status-publish","has-post-thumbnail","product_cat-products","connectivity-output-lorawan","connectivity-output-nfc","connectivity-output-wireless","instrument-type-sensors","instrument-type-wireless-sensor","instrument-type-smart-sensor","manufacturer-milesight","measurement-input-distance","measurement-input-level","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"composite_virtual":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":[44604],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Milesight EM400-UDL - Ultrasonic Distance\/Level Sensor - 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-em400-udl-ultrasonic-distance-level-sensor\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Milesight EM400-UDL - Ultrasonic Distance\/Level Sensor - OneTemp\" \/>\n<meta property=\"og:description\" content=\"The EM400-UDL is a cutting-edge ultrasonic distance and level sensor designed specifically for outdoor applications such as water level, tank fill levels in silos and more. It offers two versions with different communication options, plus high protection IP rating, waterproof enclosure, long battery life and GNSS tracking.  &nbsp;   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 \u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.onetemp.com.au\/nz\/product\/milesight-em400-udl-ultrasonic-distance-level-sensor\/\" \/>\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=\"2026-10-26T01:48:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/10\/EM400-UDL-Ultrasonic-Dist-Level-Std-2-scaled-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1797\" \/>\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=\"5 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Milesight EM400-UDL - Ultrasonic Distance\/Level Sensor - 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-em400-udl-ultrasonic-distance-level-sensor\/","og_locale":"en_US","og_type":"article","og_title":"Milesight EM400-UDL - Ultrasonic Distance\/Level Sensor - OneTemp","og_description":"The EM400-UDL is a cutting-edge ultrasonic distance and level sensor designed specifically for outdoor applications such as water level, tank fill levels in silos and more. It offers two versions with different communication options, plus high protection IP rating, waterproof enclosure, long battery life and GNSS tracking.  &nbsp;   All LoRaWAN sensors require a gateway and software for operation. See useful links below to explore Unsure what you need? 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