{"id":16584,"date":"2018-09-25T13:53:43","date_gmt":"2018-09-25T13:53:43","guid":{"rendered":"https:\/\/thomsongroup.com.au\/?post_type=product&#038;p=16584"},"modified":"2025-05-30T13:15:47","modified_gmt":"2025-05-30T03:15:47","slug":"lufft-intelligent-passive-road-sensor-irs31pro-umb","status":"publish","type":"product","link":"https:\/\/thomsongroup.com.au\/product\/lufft-intelligent-passive-road-sensor-irs31pro-umb\/","title":{"rendered":"LUFFT Intelligent Passive Road Sensor IRS31Pro-UMB"},"content":{"rendered":"<p>The passive road sensor IRS31Pro-UMB is flush-mounted in the road. The two part housing design allows the combined sensor\/electronics unit to be removed for maintenance or calibration at any time. The following variables are recorded: Road surface temperature, water film height up to 4 mm, freezing temperature for different de-icing materials (NaCl, MgCl, CaCl), road condition (dry\/damp\/wet\/ice or snow, damp with salt, wet with salt), friction (Grip), ice percentage. Optional: 2 additional depth temperatures, e.g. at 5 cm and 30 cm. The measurement data is available for further processing in the form of a standard protocol (Lufft UMB protocol).<\/p>\n<h3>Features<\/h3>\n<ul>\n<li>Freezing temperature output already from pre-set dry-damp threshold (e.g. 10\u00b5m according to new TLS specification).<\/li>\n<li>Replaceable sensor electronics (for easy calibration or maintenance)<\/li>\n<li>Polling via RS485 interface<\/li>\n<li>Low energy consumption (solar operation)<\/li>\n<li>Radar principle to measure water film<\/li>\n<li>Analogue outputs in combination with a converter (DACON &#8211; 8160.UDAC)<\/li>\n<\/ul>\n<table>\n<tbody>\n<tr>\n<td><strong>Parameters measured:<\/strong><\/td>\n<td>Road surface temperature, water film height up to 4mm, freezing temperature for different de-icing materials (NaCl, MgCl, CaCl), road condition (dry\/damp\/wet\/ice or snow\/moist with salt\/wet with salt), friction, ice Percentage, 2 additional depth sensors<\/td>\n<\/tr>\n<tr>\n<td><strong>Measurement technology:<\/strong><\/td>\n<td>Conductivity measurement (ice percentage), radar measurement (water film), NTC (road surface temp.)<\/td>\n<\/tr>\n<tr>\n<td><strong>Product highlights:<\/strong><\/td>\n<td>Two part housing design allows easy maintenance\/re-calibration, low energy consumption allows solar operation, radar principle to measure water film<\/td>\n<\/tr>\n<tr>\n<td><strong>Interfaces<\/strong>:<\/td>\n<td>RS485, SDI-12, analogue outputs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a class=\"fasc-button fasc-size-xlarge fasc-type-glossy fasc-rounded-medium\" style=\"background-color: #1a4f7b; color: #ffffff;\" target=\"_blank\" href=\"https:\/\/thomsongroup.com.au\/wp-content\/uploads\/2025\/05\/Lufft_Intelligent_Passive_Road_Sensor_IRS31Pro-UMB.pdf\">Download Technical Data<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The passive road sensor IRS31Pro-UMB is flush-mounted in the road. The two part housing design allows the combined sensor\/electronics unit to be removed for maintenance or calibration at any time. The following variables are recorded: Road surface temperature, water film height up to 4 mm, freezing temperature for different de-icing materials (NaCl, MgCl, CaCl), road [&hellip;]<\/p>\n","protected":false},"featured_media":16585,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"pwb-brand":[234,235],"product_brand":[],"product_cat":[206,240],"product_tag":[],"class_list":{"0":"post-16584","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"pwb-brand-tunnels-roads-transport","7":"pwb-brand-weather-meteorology","8":"product_cat-weather-meteorological-instrumentation","9":"product_cat-road-sensors","10":"yith_product_brand-lufft","11":"desktop-align-left","12":"tablet-align-left","13":"mobile-align-left","15":"first","16":"instock","17":"shipping-taxable","18":"product-type-simple"},"acf":[],"brands":[{"id":234,"name":"Tunnel &amp; Roads Transport","slug":"tunnels-roads-transport"},{"id":235,"name":"Weather &amp; Meteorology","slug":"weather-meteorology"}],"_links":{"self":[{"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/product\/16584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/media\/16585"}],"wp:attachment":[{"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/media?parent=16584"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/pwb-brand?post=16584"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/product_brand?post=16584"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/product_cat?post=16584"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/thomsongroup.com.au\/wp-json\/wp\/v2\/product_tag?post=16584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}