{"id":1380,"date":"2025-04-29T15:41:57","date_gmt":"2025-04-29T15:41:57","guid":{"rendered":"https:\/\/lazenby.net\/?page_id=1380"},"modified":"2026-04-09T16:06:47","modified_gmt":"2026-04-09T16:06:47","slug":"dissolved-oxygen-lab-portable","status":"publish","type":"page","link":"https:\/\/lazenby.net\/index.php\/dissolved-oxygen-lab-portable\/","title":{"rendered":"Dissolved Oxygen &#8211; Lab \/ Portable"},"content":{"rendered":"\n<div class=\"wp-block-columns has-border-color has-pale-cyan-blue-border-color has-pale-cyan-blue-background-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"border-width:5px\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><a href=\"https:\/\/lazenby.net\/wp-content\/uploads\/2025\/05\/SD335-Multi-Parameter-Meter-Instrument-only-us-en.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Link to literature <\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><a href=\"https:\/\/lazenby.net\/wp-content\/uploads\/2025\/05\/SD_335_multiManual.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Link to manual<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><a href=\"https:\/\/lazenby.net\/index.php\/product-category\/aquametrix-process-ph-orp-conductivity\/\" target=\"_blank\" rel=\"noreferrer noopener\">Link to shop<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">SD 335 Multi-Parameter Meter<\/h3>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:35% auto\"><figure class=\"wp-block-media-text__media\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-335-DO.jpg?resize=300%2C300&#038;ssl=1\" alt=\"SD 335\" class=\"wp-image-1128 size-full\" srcset=\"https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-335-DO.jpg?w=300&amp;ssl=1 300w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-335-DO.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-335-DO.jpg?resize=270%2C270&amp;ssl=1 270w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-335-DO.jpg?resize=230%2C230&amp;ssl=1 230w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-335-DO.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-335-DO.jpg?resize=100%2C100&amp;ssl=1 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p>Intuitive user interface with graphical LCD-display<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>-Galvanically isolated measuring inputs<\/li>\n\n\n\n<li>-Data transfer via Micro-USB in CSV format<\/li>\n\n\n\n<li>-Robust protective armouring with two electrode holders<\/li>\n<\/ul>\n\n\n\n<p>Waterproof multiparameter handheld instrument for the simultaneous determination of temperature and two other parameters: pH, ORP, conductivity\/TDS\/salinity and dissolved oxygen (O<sub>2<\/sub>-concentration\/O<sub>2<\/sub>-saturation)<\/p>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-columns has-border-color has-pale-cyan-blue-border-color has-pale-cyan-blue-background-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"border-width:5px\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><a href=\"https:\/\/lazenby.net\/wp-content\/uploads\/2025\/05\/SD400-Oxi-L-Dissolved-Oxygen-Meter-Instrument-Only-us-en.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Link to literature<\/a> <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><a href=\"https:\/\/lazenby.net\/wp-content\/uploads\/2025\/05\/sd_400_oxi_l_multiManual.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Link to manual<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><a href=\"https:\/\/lazenby.net\/index.php\/product-category\/aquametrix-process-ph-orp-conductivity\/\" target=\"_blank\" rel=\"noreferrer noopener\">Link to shop<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\" style=\"grid-template-columns:auto 32%\"><div class=\"wp-block-media-text__content\">\n<h2 class=\"wp-block-heading\">SD 400 Dissolved Oxygen Meter<\/h2>\n\n\n\n<p>Luminescence Technology<\/p>\n\n\n\n<p>High accuracy<\/p>\n\n\n\n<p>Drift-free, optical measurement<\/p>\n\n\n\n<p>Easy, intuitive handling<\/p>\n\n\n\n<p>The portable SD 400 Oxi L handheld meter allows the determination of dissolved oxygen using the highly accurate optical luminescence technology. The advantages of optical oxygen determination over conventional methods are manifold:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>-No need of an internal electrolyte: no additional effort, no hidden costs<\/li>\n\n\n\n<li>-No sample flow necessary for stable sensor response<\/li>\n\n\n\n<li>-No interferences from other gases<\/li>\n\n\n\n<li>-Drift-free measurement ensures extremely precise results<\/li>\n\n\n\n<li>-Low wear and low maintenance due to a long-life membrane head<\/li>\n\n\n\n<li>-Ready for immediate use without warm-up or polarization times<\/li>\n<\/ul>\n\n\n\n<p>Functions such as the automatic temperature, pressure and salt compensation are ideal to match individual measuring conditions and make the instrument the perfect all-rounder in water analysis. Calibration data are sensor-specific and stored on the integrated SD card in the unit, which also contains a free software for monitoring, storing and transferring measurement data.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-400-DO.jpg?resize=300%2C300&#038;ssl=1\" alt=\"SD 400 DO\" class=\"wp-image-1129 size-full\" srcset=\"https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-400-DO.jpg?w=300&amp;ssl=1 300w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-400-DO.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-400-DO.jpg?resize=270%2C270&amp;ssl=1 270w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-400-DO.jpg?resize=230%2C230&amp;ssl=1 230w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-400-DO.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-400-DO.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/lazenby.net\/wp-content\/uploads\/2025\/04\/SD-400-DO.jpg?resize=30%2C30&amp;ssl=1 30w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Link to literature Link to manual Link to shop SD 335 Multi-Parameter Meter Link to literature Link to manual Link to shop<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1380","page","type-page","status-publish","hentry","","tg-column-two"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dissolved Oxygen - Lab \/ Portable - Lazenby &amp; 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