{"id":25592,"date":"2026-07-06T17:04:49","date_gmt":"2026-07-06T15:04:49","guid":{"rendered":"https:\/\/roder.it\/products\/industrial-laser-distance-sensors\/ldm42-series-industrial-laser-distance-meters\/"},"modified":"2026-10-02T22:46:32","modified_gmt":"2026-10-02T20:46:32","slug":"ldm42-series-industrial-laser-distance-meters","status":"publish","type":"page","link":"https:\/\/roder.it\/en\/products\/industrial-laser-distance-sensors\/ldm42-series-industrial-laser-distance-meters\/","title":{"rendered":"LDM42 series industrial LASER distance meters"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-61d584a3 wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-ba02fbf7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2020\/01\/ldm_41_42_series_laser_distance_meters_industrial_applications_masterimage.png\" alt=\"ASTech LDM42 industrial LASER distance meter\" style=\"border-width:1px;border-top-left-radius:20px;border-top-right-radius:20px;border-bottom-left-radius:20px;border-bottom-right-radius:20px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<p class=\"has-text-color has-background wp-block-paragraph\" style=\"border-radius:0px 6px 6px 0px;border-left-color:var(--wp--preset--color--ti-accent);border-left-style:solid;border-left-width:5px;color:#1A5276;background-color:#ebf1f4;padding-top:14px;padding-right:16px;padding-bottom:14px;padding-left:16px;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.769), 20px);font-style:italic\">The <strong>LDM42 series industrial LASER distance meters<\/strong> from ASTech measure distance without contact using the comparative phase measurement method (amplitude modulation), ensuring high accuracy and independence from the surface of the target.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list is-style-checkbox has-ti-accent-color has-text-color has-link-color wp-elements-1\">\n<li>Measuring range <strong>0.1\u2013150 m<\/strong> (up to ~30 m on natural surfaces, over 100 m with a reflector)<\/li>\n\n\n\n<li>Uncertainty down to <strong>\u00b12 mm<\/strong> and resolution <strong>0.1 mm<\/strong><\/li>\n\n\n\n<li>Visible red LASER beam, <strong>Class 2<\/strong> (DIN EN 60825-1), easy alignment<\/li>\n\n\n\n<li>Available with <strong>4\u201320 mA analogue<\/strong>, serial, Ethernet, PROFINET, PROFIBUS and EtherNet\/IP interfaces<\/li>\n\n\n\n<li><strong>IP65<\/strong> aluminium housing, compact (195\u00d796\u00d750 mm, 800 g)<\/li>\n\n\n\n<li>Operation from <strong>\u221210 to +50 \u00b0C<\/strong> (down to \u221240 \u00b0C with optional heating)<\/li>\n\n\n\n<li>Wide range of <strong>accessories and protective housings<\/strong> for harsh environments<\/li>\n\n\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">The LDM42 LASER distance meter is an optoelectronic device for distance measurement in industrial applications. It works <strong>contactless<\/strong> by projecting a visible red LASER beam and measuring the distance through the phase comparison of the amplitude-modulated signal. This principle ensures millimetre-accurate measurements and a high degree of independence from the nature of the target surface.  <\/p>\n\n<p class=\"wp-block-paragraph\">Thanks to its wide range of interfaces and accessories, the LDM42 integrates both into systems with a 4\u201320 mA analogue signal and into industrial networks (Ethernet, PROFINET, PROFIBUS DP, EtherNet\/IP), and it can be protected with dedicated housings for use in extreme environments.<\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-cover is-light popmake-11245\" style=\"border-width:1px;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px;min-height:250px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"213\" class=\"wp-block-cover__image-background wp-image-14896 size-large\" alt=\"banner aiuto nella scelta dello strumento oppure della tecnologia\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png\" data-object-fit=\"cover\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png 1024w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-300x63.png 300w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-768x160.png 768w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#d3d6dc\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-a304f9a9 wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-right has-ti-fg-color has-text-color has-link-color wp-elements-2 wp-block-paragraph\" style=\"font-size:clamp(21.536px, 1.346rem + ((1vw - 3.2px) * 1.726), 35px);\"><strong>Would you like help choosing the right product ?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-right is-layout-flex wp-container-core-buttons-is-layout-b507c051 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/roder.it\/en\/contacts\/\">Click here !<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Operating principle<\/h2>\n\n<p class=\"wp-block-paragraph\">Measurement is performed by the <strong>comparative phase measurement<\/strong> method: the LASER beam is amplitude-modulated and the distance is calculated from the phase shift between the emitted signal and the one reflected by the target. The visible red beam makes aligning the sensor easier. On natural surfaces the range reaches about 30 m; using reflectors on the object, more than 100 m is achieved.  <\/p>\n\n<h2 class=\"wp-block-heading\">Technical specifications<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td>Feature<\/td><td>Value<\/td><\/tr><\/thead><tbody><tr><td>Measuring range<\/td><td>0.1\u2013150 m overall \u00b7 0.1\u201330 m on almost any natural surface \u00b7 over 100 m with a reflector<\/td><\/tr><tr><td>Measurement uncertainty<\/td><td>\u00b12 mm (defined conditions) \u00b7 \u00b13 mm (+15\u2026+30 \u00b0C) \u00b7 \u00b15 mm (\u221210\u2026+50 \u00b0C)<\/td><\/tr><tr><td>Resolution<\/td><td>0.1 mm, freely scalable (1 mm standard)<\/td><\/tr><tr><td>Reproducibility<\/td><td>0.5 mm<\/td><\/tr><tr><td>Measuring time<\/td><td>0.1\u20136 s adjustable\/automatic (DT mode) \u00b7 0.1 s (DW mode) \u00b7 20 ms (DX mode)<\/td><\/tr><tr><td>Max speed \/ acceleration<\/td><td>4 m\/s \u00b7 2.5 m\/s\u00b2 (DX mode)<\/td><\/tr><tr><td>LASER beam<\/td><td>divergence 0.6 mrad \u00b7 spot &lt;11 mm at 10 m, &lt;35 mm at 50 m, &lt;65 mm at 100 m<\/td><\/tr><tr><td>LASER class<\/td><td>Class 2 (DIN EN 60825-1:2014, 650 nm, red)<\/td><\/tr><tr><td>Power supply<\/td><td>10\u201330 V DC \u00b7 consumption ~1.5 W (measuring), ~25.7 W with heating<\/td><\/tr><tr><td>Operating temperature<\/td><td>\u221210\u2026+50 \u00b0C (\u221240\u2026+50 \u00b0C with optional heating)<\/td><\/tr><tr><td>Storage temperature<\/td><td>\u221240\u2026+70 \u00b0C<\/td><\/tr><tr><td>Serial interface<\/td><td>RS232 or RS422, max baud 115,200, ASCII<\/td><\/tr><tr><td>Analogue output<\/td><td>4\u201320 mA, programmable range<\/td><\/tr><tr><td>Digital output \/ input<\/td><td>high-side output max 0.5 A (programmable threshold and hysteresis) \u00b7 trigger input 3\u201324 V<\/td><\/tr><tr><td>Housing<\/td><td>powder-coated aluminium \u00b7 195 \u00d7 96 \u00d7 50 mm \u00b7 800 g \u00b7 IP65<\/td><\/tr><tr><td>Shock resistance \/ MTBF<\/td><td>10 g \/ 6 ms (DIN ISO 9022) \u00b7 MTBF 30,000 h @ 25 \u00b0C<\/td><\/tr><tr><td>Mounting<\/td><td>4 holes for M6 screws (100 \u00d7 85 mm)<\/td><\/tr><tr><td>Options<\/td><td>Viton seals (\u2212v), integrated heating (\u2212h), pressure regulation (\u2212d)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Versions and interfaces<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td>Version<\/td><td>Communication interface<\/td><\/tr><\/thead><tbody><tr><td>LDM42A<\/td><td>4\u201320 mA analogue output + RS232\/RS422 serial interface<\/td><\/tr><tr><td>LDM42E<\/td><td>Integrated Ethernet interface (data via UDP\/TCP)<\/td><\/tr><tr><td>LDM42PN<\/td><td>Integrated PROFINET interface<\/td><\/tr><tr><td>LDM42P<\/td><td>Integrated PROFIBUS DP interface<\/td><\/tr><tr><td>LDM42EI<\/td><td>Integrated EtherNet\/IP interface<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Technical documentation<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td><\/td><td>Document<\/td><td>Type<\/td><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42a.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42a.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM42A datasheet (4-20 mA analogue + serial)<\/strong><\/a><\/td><td>Datasheet<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42e.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42e.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM42E datasheet (Ethernet)<\/strong><\/a><\/td><td>Datasheet<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42pn.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42pn.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM42PN datasheet (PROFINET)<\/strong><\/a><\/td><td>Datasheet<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42p.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42p.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM42P datasheet (PROFIBUS DP)<\/strong><\/a><\/td><td>Datasheet<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42ei.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/datasheet-ldm42ei.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM42EI datasheet (EtherNet\/IP)<\/strong><\/a><\/td><td>Datasheet<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm41-42a.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm41-42a.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM41\/42A manual<\/strong><\/a><\/td><td>Manual<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm42e.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm42e.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM42E manual (Ethernet)<\/strong><\/a><\/td><td>Manual<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm41-42pn.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm41-42pn.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM41\/42PN manual (PROFINET)<\/strong><\/a><\/td><td>Manual<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm41-42p.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm41-42p.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM41\/42P manual (PROFIBUS DP)<\/strong><\/a><\/td><td>Manual<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm41-42ei.pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/icona_pdf_download.webp\" alt=\"Scarica PDF\" width=\"40\" height=\"51\" style=\"width:40px;height:51px\" \/><\/a><\/td><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/manuale-ldm41-42ei.pdf\" target=\"_blank\" rel=\"noopener\"><strong>LDM41\/42EI manual (EtherNet\/IP)<\/strong><\/a><\/td><td>Manual<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Typical applications<\/h2>\n\n<p class=\"wp-block-paragraph\">LDM42 LASER distance meters are used in numerous industrial applications for measuring distance, position, level, diameter and deformation. The applications carried out and documented are given below, with the relevant further reading. <\/p>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-livello-in-serbatoi-e-silos-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_livello_silos_serbatoi_1200x1200.png\" alt=\"Level in tanks and silos\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-livello-in-serbatoi-e-silos-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Level in tanks and silos<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">LASER distance sensors measure the level of bulk materials and liquids in large tanks and silos, with accurate readings and remote display, ensuring production continuity and operational safety in the plant.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-posizione-e-spostamento-di-carriponte-e-gru-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_posizione_carriponte_gru_1200x1200.png\" alt=\"Position of overhead travelling cranes\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-posizione-e-spostamento-di-carriponte-e-gru-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Position of overhead travelling cranes<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">LASER distance sensors measure the position and displacement of overhead travelling cranes and cranes, providing precise, safe positioning in lifting and handling operations inside plants and warehouses.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/monitoraggio-di-deformazione-e-di-spostamento-di-grandi-strutture-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_deformazione_grandi_strutture_1200x1200.png\" alt=\"Deformation of large structures\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/monitoraggio-di-deformazione-e-di-spostamento-di-grandi-strutture-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Deformation of large structures<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">In structural monitoring, LASER distance sensors detect the deformation and displacement of bridges, buildings and large infrastructure, providing accurate, reliable data for safety and scheduled maintenance over time.<\/p>\n<\/div>\n\n\n<\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-oscillazioni-e-vibrazioni-di-grandi-strutture-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_deformazione_ponit_1200x1200.png\" alt=\"Oscillation and vibration of structures\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-oscillazioni-e-vibrazioni-di-grandi-strutture-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Oscillation and vibration of structures<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">LASER distance sensors measure the oscillation and vibration of large structures without contact: an advanced method for assessing stability over time and ensuring the safety and reliability of the civil and industrial infrastructure being monitored.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-diametro-e-posizione-di-coil-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_diametro_bobine_1200x1200.png\" alt=\"Coil diameter and position\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-diametro-e-posizione-di-coil-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Coil diameter and position<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">In the metallurgical and steel industry, LASER distance sensors check the diameter and position of moving coils non-invasively, providing reliable measurements for process control and handling.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-chimico\/misura-di-diametro-di-bobine-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_diametro_bobine_carta_1200x1200.png\" alt=\"Diameter of paper reels\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-chimico\/misura-di-diametro-di-bobine-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Diameter of paper reels<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Measuring reel diameter with LASER distance sensors gives precise, real-time process control, ensuring reliability, less scrap and continuity in the production of webs and films.<\/p>\n<\/div>\n\n\n<\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-posizione-di-oggetti-ad-alta-temperatura-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_misura_posizione_bramme_billette_1200x1200.png\" alt=\"Position of high-temperature objects\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-posizione-di-oggetti-ad-alta-temperatura-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Position of high-temperature objects<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">In steelmaking and foundries, LASER distance sensors measure the position of slabs, billets and red-hot objects without contact, where conventional systems cannot withstand the heat, ensuring accuracy and operator safety.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-lunghezza-e-posizione-di-materiali-incandescenti-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_misura_posizione_barre_1200x1200.png\" alt=\"Length of red-hot materials\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-lunghezza-e-posizione-di-materiali-incandescenti-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Length of red-hot materials<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">In steel process control, LASER distance sensors measure the length and position of bars and red-hot materials without contact, withstanding the high temperatures where conventional measuring methods fail.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/senza-categoria\/misura-di-lunghezza-e-spessore-di-taglio-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_posizione_tronchi_1200x1200.png\" alt=\"Cut length and thickness\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/senza-categoria\/misura-di-lunghezza-e-spessore-di-taglio-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Cut length and thickness<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">On cutting lines, LASER distance sensors measure the length and thickness of the workpiece precisely and repeatably, improving quality control and reducing scrap in industrial cut-to-length processes.<\/p>\n<\/div>\n\n\n<\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium has-custom-border\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-posizione-e-spostamento-di-mezzi-di-trasporto-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2025\/01\/distanziometri_laser_applicazione_misura_posizione_mezzi_trasporto_1200x1200.png\" alt=\"Position of transport vehicles\" style=\"border-color:#000000;border-width:1px;border-radius:12px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><a href=\"https:\/\/roder.it\/roder-applicazioni-e-novita-settore-estrattivo\/misura-di-posizione-e-spostamento-di-mezzi-di-trasporto-con-distanziometri-laser\/\" target=\"_blank\" rel=\"noopener\">Position of transport vehicles<\/a><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">In logistics and transport, LASER distance sensors monitor the position and movement of vehicles, improving operational efficiency and safety through reliable, real-time distance measurements.<\/p>\n<\/div>\n\n\n<\/div>\n\n<h2 class=\"wp-block-heading\">Accessories and options<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Grey filter for signal attenuation<\/li>\n\n\n\n<li>Mounting bracket<\/li>\n\n\n\n<li>Digital display for the analogue signal<\/li>\n\n\n\n<li>Temperature-controlled heating (option \u2212h) for low temperatures<\/li>\n\n\n\n<li>Protective housing, also with water cooling<\/li>\n\n\n\n<li>Protective tube with a purge-air connection<\/li>\n\n\n\n<li>Protective window<\/li>\n\n\n\n<li>Additional reflectors for measurements beyond 100 m<\/li>\n\n\n<\/ul>\n\n<p class=\"wp-block-paragraph\">This page is part of the range of <a href=\"https:\/\/roder.it\/en\/products\/industrial-laser-distance-sensors\/\">{{1|industrial LASER distance meters<\/a>}} distributed by RODER.<\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-1\"><strong class=\"schema-faq-question\">What is the measuring range of the LDM42 LASER distance meter?<\/strong> <p class=\"schema-faq-answer\">The overall range is 0.1\u2013150 m: up to about 30 m on almost any natural surface without a reflector and over 100 m using reflectors on the target.<\/p> <\/div><div class=\"schema-faq-section\" id=\"faq-2\"><strong class=\"schema-faq-question\">What accuracy does the LDM42 have?<\/strong> <p class=\"schema-faq-answer\">The measurement uncertainty is \u00b12 mm under defined conditions (\u00b13 mm between +15 and +30 \u00b0C), with a resolution down to 0.1 mm and a reproducibility of 0.5 mm.<\/p> <\/div><div class=\"schema-faq-section\" id=\"faq-3\"><strong class=\"schema-faq-question\">Is the LASER safe? Which class does it belong to? <\/strong> <p class=\"schema-faq-answer\">The LDM42 uses a visible red 650 nm Class 2 LASER according to DIN EN 60825-1:2014; the visible beam makes alignment easier.<\/p> <\/div><div class=\"schema-faq-section\" id=\"faq-4\"><strong class=\"schema-faq-question\">Which interfaces and versions are available?<\/strong> <p class=\"schema-faq-answer\">LDM42A (4\u201320 mA analogue + serial), LDM42E (Ethernet), LDM42PN (PROFINET), LDM42P (PROFIBUS DP) and LDM42EI (EtherNet\/IP).<\/p> <\/div><div class=\"schema-faq-section\" id=\"faq-5\"><strong class=\"schema-faq-question\">Can it work in harsh environments and at high temperatures?<\/strong> <p class=\"schema-faq-answer\">Yes: the housing is IP65 aluminium, the operating temperature ranges from \u221210 to +50 \u00b0C (down to \u221240 \u00b0C with optional heating) and protective housings are available, also with water cooling.<\/p> <\/div><\/div>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading has-ti-accent-color has-text-color has-link-color wp-elements-3\">Contacts &amp; Information<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Contact for general information : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><br\/><br\/>Machine Vision Division of RODER : <a href=\"http:\/\/www.rodervision.com\">www.rodervision.com<\/a><br\/>RODER Instruments Division : <a href=\"http:\/\/www.rodervision.com\">www.innovacheck.com<\/a><br\/>More about RODER : <a href=\"https:\/\/roder.it\/en\/contacts\/\">about us<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The information contained in this website is provided for information purposes only. Although it has been prepared with the greatest care, it does not constitute a contractual offer or a binding commitment to supply. It may contain transcription, translation or typographical errors. For precise and up-to-date information, please contact our company directly.   <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> Some images on this website have been intentionally generated using artificial intelligence (AI). This is because, for many applications and projects, photographs of the actual installation or system cannot be disclosed owing to confidentiality agreements, contractual clauses and non-disclosure agreements (NDAs). <\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The LDM42 series industrial LASER distance meters from ASTech measure distance without contact using the comparative phase measurement method (amplitude modulation), ensuring high accuracy and independence from the surface of the target. The LDM42 LASER distance meter is an optoelectronic device for distance measurement in industrial applications. It works contactless by projecting a visible red [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":0,"parent":18254,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"footnotes":""},"class_list":["post-25592","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LDM42 series industrial LASER distance meters - RODER SRL<\/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:\/\/roder.it\/en\/products\/industrial-laser-distance-sensors\/ldm42-series-industrial-laser-distance-meters\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LDM42 series industrial LASER distance meters - RODER SRL\" \/>\n<meta property=\"og:description\" content=\"The LDM42 series industrial LASER distance meters from ASTech measure distance without contact using the comparative phase measurement method (amplitude modulation), ensuring high accuracy and independence from the surface of the target. The LDM42 LASER distance meter is an optoelectronic device for distance measurement in industrial applications. 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The LDM42 LASER distance meter is an optoelectronic device for distance measurement in industrial applications. 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