{"id":18756,"date":"2026-07-06T17:59:30","date_gmt":"2026-07-06T15:59:30","guid":{"rendered":"https:\/\/roder.it\/products\/bolt-tension-monitors\/bt1-dl-series-bolt-tension-monitors\/"},"modified":"2026-09-21T11:33:28","modified_gmt":"2026-09-21T09:33:28","slug":"bt1-dl-series-bolt-tension-monitors","status":"publish","type":"page","link":"https:\/\/roder.it\/en\/products\/bolt-tension-monitors\/bt1-dl-series-bolt-tension-monitors\/","title":{"rendered":"BT1-DL series bolt tension monitors"},"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\/2026\/07\/dakota_ndt-bt1-strumento_bt1_dl_misura_tensione_elongazione_bulloni_e_tiranti-web_image-680x680-1.webp\" alt=\"Dakota NDT BT1-DL bolt tension monitor\" 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>BT1-DL<\/strong> from Dakota NDT is an ultrasonic <strong>bolt tension monitor<\/strong>: it accurately measures bolt <strong>elongation<\/strong>, load, stress and strain, removing the uncertainties of the torque method through direct tension measurement.<\/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><strong>Direct tension measurement :<\/strong> elongation, load, stress, % strain<\/li>\n\n\n\n<li><strong>Removes torque uncertainty :<\/strong> real clamp load measurement<\/li>\n\n\n\n<li><strong>Temperature compensation :<\/strong> and transducer auto-correlation<\/li>\n\n\n\n<li><strong>1\u201310 MHz transducers :<\/strong> + glue-on version for short bolts<\/li>\n\n\n\n<li><strong>Auto calibration :<\/strong> and field calibration (vector\/regression)<\/li>\n\n\n\n<li><strong>4 GB memory :<\/strong> USB-C, PC and OSX software<\/li>\n\n\n\n<li><strong>Industries :<\/strong> aerospace, energy, infrastructure, railways<\/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 BT1-DL uses ultrasound to accurately measure bolt <strong>elongation<\/strong> and derive from it the time of flight (in nanoseconds), the load, the stress and the percentage of strain. This removes the problems typical of torque tightening, by measuring <strong>tension directly<\/strong>. <\/p>\n\n<p class=\"wp-block-paragraph\">The <strong>auto-correlation<\/strong> functions assist transducer positioning, while auto-calibration and field calibration (vector or regression) ensure repeatable measurements. It offers 64 setups, alarms with adjustable thresholds, 4 GB of memory and USB-C connectivity with reporting software for PC and OSX. <\/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<style>.roder-spec thead td{background:#e8edf1 !important;font-weight:700;border-bottom:2px solid #c3cfd7 !important;}.roder-spec tbody tr:nth-child(2n) td{background-color:#f2f6f8 !important;}.roder-spec tbody tr:nth-child(2n+1) td{background-color:#ffffff !important;}.roder-codici table thead td{background:#e8edf1;font-weight:700;}.roder-codici .is-style-stripes tbody tr:nth-child(2n){background-color:#f2f6f8;}.roder-codici .is-style-stripes tbody tr:nth-child(2n+1){background-color:#ffffff;}.roder-codici .codici-header{background:#e8edf1;border-bottom:2px solid #c3cfd7;margin-bottom:0;}.roder-codici .codici-header,.roder-codici .codici-row{padding:6px 12px !important;}.roder-codici .codici-header p{margin:8px 0;}.roder-codici .codici-row{margin-top:0;margin-bottom:0;}.roder-codici .codici-row p{margin:6px 0;}.roder-codici .codici-row .wp-block-column:first-child{text-align:center;}.roder-codici .codici-row figure.wp-block-image{margin-left:auto !important;margin-right:auto !important;}<\/style>\n\n<h2 class=\"wp-block-heading\">Technical characteristics<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes roder-spec\"><table class=\"has-fixed-layout\"><thead><tr><td>Feature<\/td><td>Value<\/td><\/tr><\/thead><tbody><tr><td>Instrument type<\/td><td>Ultrasonic bolt tension monitors<\/td><\/tr><tr><td>Measured quantities<\/td><td>Elongation, load, stress, percentage of strain, time (nanoseconds)<\/td><\/tr><tr><td>Timing<\/td><td>Precision TCXO; digitizer with adjustable resolution<\/td><\/tr><tr><td>Temperature compensation<\/td><td>Yes<\/td><\/tr><tr><td>Measuring mode<\/td><td>Pulse-Echo (single echo)<\/td><\/tr><tr><td>Transducers<\/td><td>Single element 1\u201310 MHz, diameters 1\/8\u201d\u20131\u201d; glue-on version for short bolts<\/td><\/tr><tr><td>Functions<\/td><td>Auto Correlation (transducer positioning), Auto Set, auto-calibration, field calibration (vector or regression)<\/td><\/tr><tr><td>Setups<\/td><td>64 customizable setups<\/td><\/tr><tr><td>Alarms<\/td><td>Adjustable high\/low thresholds with LED and audible signal<\/td><\/tr><tr><td>Memory<\/td><td>4 GB internal<\/td><\/tr><tr><td>Connectivity<\/td><td>USB-C; PC and OSX software<\/td><\/tr><tr><td>Keypad<\/td><td>12-key membrane keypad<\/td><\/tr><tr><td>Operating temperature<\/td><td>\u221210 \u2026 +60 \u00b0C<\/td><\/tr><tr><td>Dimensions<\/td><td>63.5 \u00d7 165 \u00d7 31.5 mm<\/td><\/tr><tr><td>Weight<\/td><td>approx. 383 g (13.5 oz, with batteries)<\/td><\/tr><tr><td>Housing<\/td><td>Extruded aluminum with nickel-plated aluminum end caps (sealed gaskets)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<div class=\"wp-block-group roder-codici is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Part numbers, accessories and spare parts<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Part numbers for ordering the BT1-DL and its accessories. The part numbers will be added as soon as they are available. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Instrument \u2013 complete kit<\/h3>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:280px\">\n<figure class=\"wp-block-image size-large is-resized has-custom-border\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt1-strumento_bt1_dl_misura_tensione_elongazione_bulloni_e_tiranti-web_image-680x680-1.webp\" alt=\"product\" style=\"border-color:#cccccc;border-width:1px;border-radius:12px;width:260px\"\/><\/figure>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td>Part number<\/td><td>Product code<\/td><td>Description<\/td><\/tr><\/thead><tbody><tr><td><strong>&#8212;<\/strong><\/td><td>BT1-DL<\/td><td>BT1-DL ultrasonic bolt tension monitor<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Accessories<\/h3>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center codici-header is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:110px\">\n<p class=\"wp-block-paragraph\"><strong>Photo<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:22%\">\n<p class=\"wp-block-paragraph\"><strong>Part number<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:26%\">\n<p class=\"wp-block-paragraph\"><strong>Product code<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Description<\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center codici-row is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:110px\">\n<figure class=\"wp-block-image aligncenter size-medium is-resized has-custom-border\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-trasduttori_bulloni-generico_t_895_0607-web_image-649x649-1.webp\" alt=\"Bolt transducer\" style=\"border-color:#cccccc;border-width:1px;border-radius:8px;object-fit:contain;width:96px;height:96px\"\/><\/figure>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:22%\">\n<p class=\"wp-block-paragraph\"><strong>&#8212;<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:26%\">\n<p class=\"wp-block-paragraph\">Bolt transducer<\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Single-element transducer (1\u201310 MHz, diameters 1\/8\u201d\u20131\u201d); glue-on version for short bolts<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center codici-row has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\" style=\"background-color:#f2f6f8\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:110px\">\n<figure class=\"wp-block-image aligncenter size-medium is-resized has-custom-border\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-strumenti_ultrasuoni_generale-immagine_con_sonda_ad_ultrasuoni_e_liq_accoppiante-web_image-1200x1200-1.webp\" alt=\"Couplant\" style=\"border-color:#cccccc;border-width:1px;border-radius:8px;object-fit:contain;width:96px;height:96px\"\/><\/figure>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:22%\">\n<p class=\"wp-block-paragraph\"><strong>&#8212;<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:26%\">\n<p class=\"wp-block-paragraph\">Couplant<\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Coupling gel for ultrasound transmission<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center codici-row is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:110px\">\n<figure class=\"wp-block-image aligncenter size-medium is-resized has-custom-border\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-strumenti_ultrasuoni_generale-accessorio_valigetta-web_image-680x680-1.webp\" alt=\"Carrying case\" style=\"border-color:#cccccc;border-width:1px;border-radius:8px;object-fit:contain;width:96px;height:96px\"\/><\/figure>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:22%\">\n<p class=\"wp-block-paragraph\"><strong>&#8212;<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:26%\">\n<p class=\"wp-block-paragraph\">Carrying case<\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Carrying case for the instrument and its accessories<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\">Technical documentation<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes roder-spec\"><table class=\"has-fixed-layout\"><thead><tr><td>Document<\/td><td>Type<\/td><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-documentazione-monitor_tensione_bulloni_bt1_dl-datasheet.pdf\" target=\"_blank\" rel=\"noopener\">BT1-DL datasheet<\/a><\/td><td>Datasheet (PDF)<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-documentazione-monitor_tensione_bulloni_bt1_dl-manual.pdf\" target=\"_blank\" rel=\"noopener\">BT1-DL manual<\/a><\/td><td>Manual (PDF)<\/td><\/tr><\/tbody><\/table><\/figure>\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\"><strong class=\"schema-faq-question\">What does the BT1-DL measure?<\/strong><p class=\"schema-faq-answer\">It measures bolt elongation and derives from it the load, stress, percentage of strain and time (in nanoseconds), for direct control of fastener tension.<\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Why is it more accurate than torque tightening?<\/strong><p class=\"schema-faq-answer\">Because it measures tension directly by ultrasound, removing the friction-related uncertainties typical of the torque method.<\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Which transducers does it use?<\/strong><p class=\"schema-faq-answer\">Single-element 1\u201310 MHz transducers with diameters from 1\/8\u201d to 1\u201d; a glue-on version is available for short bolts.<\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Does it store the measurements?<\/strong><p class=\"schema-faq-answer\">Yes: 4 GB of internal memory, with download via USB-C and reporting software for PC and OSX.<\/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 BT1-DL from Dakota NDT is an ultrasonic bolt tension monitor: it accurately measures bolt elongation, load, stress and strain, removing the uncertainties of the torque method through direct tension measurement. The BT1-DL uses ultrasound to accurately measure bolt elongation and derive from it the time of flight (in nanoseconds), the load, the stress and [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":0,"parent":18680,"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-18756","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>BT1-DL series bolt tension monitors - 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\/bolt-tension-monitors\/bt1-dl-series-bolt-tension-monitors\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"BT1-DL series bolt tension monitors - RODER SRL\" \/>\n<meta property=\"og:description\" content=\"The BT1-DL from Dakota NDT is an ultrasonic bolt tension monitor: it accurately measures bolt elongation, load, stress and strain, removing the uncertainties of the torque method through direct tension measurement. The BT1-DL uses ultrasound to accurately measure bolt elongation and derive from it the time of flight (in nanoseconds), the load, the stress and [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/roder.it\/en\/products\/bolt-tension-monitors\/bt1-dl-series-bolt-tension-monitors\/\" \/>\n<meta property=\"og:site_name\" content=\"RODER SRL\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-21T09:33:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt1-strumento_bt1_dl_misura_tensione_elongazione_bulloni_e_tiranti-web_image-680x680-1.webp\" \/>\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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/roder.it\\\/en\\\/products\\\/bolt-tension-monitors\\\/bt1-dl-series-bolt-tension-monitors\\\/\",\"url\":\"https:\\\/\\\/roder.it\\\/en\\\/products\\\/bolt-tension-monitors\\\/bt1-dl-series-bolt-tension-monitors\\\/\",\"name\":\"BT1-DL series bolt tension monitors - 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They provide elongation, load, stress, percentage of strain and time (in nanoseconds). The BT1-DL is the handheld model; the\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT BT2 DL, misuratore di tensione dei bulloni versione top di gamma","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":18780,"url":"https:\/\/roder.it\/en\/products\/bolt-tension-monitors\/bt2-dl-series-bolt-tension-monitors\/","url_meta":{"origin":18756,"position":1},"title":"BT2-DL series bolt tension monitors","author":"GSM","date":"6 July 2026","format":false,"excerpt":"The BT2-DL from Dakota NDT is the top-of-the-range ultrasonic bolt tension monitor: more powerful and faster, it handles a wider range of lengths thanks to three measuring modes (Pulse-Echo, Echo-Echo, Echo-Echo-Verify) and expandable memory. Top-of-the-range bolt tension monitor : advanced functions and fast operation 3 measuring modes : Pulse-Echo, Echo-Echo,\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":15564,"url":"https:\/\/roder.it\/prodotti\/monitor-tensione-bulloni\/","url_meta":{"origin":18756,"position":2},"title":"Monitor tensione bulloni","author":"GSM","date":"6 July 2026","format":false,"excerpt":"RODER \u00b7 Monitor di tensione bulloni Dakota NDT Monitor di tensione bulloni Dakota NDT I monitor di tensione bulloni a ultrasuoni Dakota NDT misurano direttamente la tensione dei fissaggi tramite l\u2019elongazione, eliminando le incertezze del serraggio a coppia. Forniscono elongazione, carico, sforzo, percentuale di deformazione e tempo (in nanosecondi). Il\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT BT2 DL, misuratore di tensione dei bulloni versione top di gamma","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":18687,"url":"https:\/\/roder.it\/fr\/produits\/moniteurs-de-tension-des-boulons\/","url_meta":{"origin":18756,"position":3},"title":"Moniteurs de tension des boulons","author":"GSM","date":"6 July 2026","format":false,"excerpt":"RODER \u00b7 Moniteurs de tension des boulons Dakota NDT Moniteurs de tension des boulons Dakota NDT Les moniteurs de tension des boulons \u00e0 ultrasons Dakota NDT mesurent directement la tension des fixations par l\u2019allongement, \u00e9liminant les incertitudes du serrage au couple. Ils fournissent l\u2019allongement, la charge, la contrainte, le pourcentage\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT BT2 DL, misuratore di tensione dei bulloni versione top di gamma","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":18701,"url":"https:\/\/roder.it\/es\/productos\/monitores-de-tension-de-pernos\/","url_meta":{"origin":18756,"position":4},"title":"Monitores de tensi\u00f3n de pernos","author":"GSM","date":"6 July 2026","format":false,"excerpt":"RODER \u00b7 Monitores de tensi\u00f3n de pernos Dakota NDT Monitores de tensi\u00f3n de pernos Dakota NDT Los monitores de tensi\u00f3n de pernos por ultrasonidos Dakota NDT miden directamente la tensi\u00f3n de las fijaciones mediante el alargamiento, eliminando las incertidumbres del apriete por par. Proporcionan alargamiento, carga, esfuerzo, porcentaje de deformaci\u00f3n\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT BT2 DL, misuratore di tensione dei bulloni versione top di gamma","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":15624,"url":"https:\/\/roder.it\/prodotti\/monitor-tensione-bulloni\/monitor-tensione-bulloni-serie-bt1-dl\/","url_meta":{"origin":18756,"position":5},"title":"Monitor tensione bulloni serie BT1-DL","author":"GSM","date":"6 July 2026","format":false,"excerpt":"Il BT1-DL di Dakota NDT \u00e8 un monitor di tensione bulloni a ultrasuoni: misura con precisione l\u2019elongazione, il carico, lo sforzo e la deformazione dei bulloni, eliminando le incertezze del metodo a coppia grazie alla misura diretta della tensione. 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