{"id":3351,"date":"2014-11-18T22:23:10","date_gmt":"2014-11-19T06:23:10","guid":{"rendered":""},"modified":"2025-05-13T09:39:37","modified_gmt":"2025-05-13T16:39:37","slug":"3351","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/3351","title":{"rendered":"Which CO\u2082 Gas sensor do I have?"},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 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<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/product.gdx-co2._hero.001-scaled-1-e1740433624987-300x300.jpg\" alt=\"\" class=\"wp-image-23230\" style=\"object-fit:cover\" srcset=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/product.gdx-co2._hero.001-scaled-1-e1740433624987-300x300.jpg 300w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/product.gdx-co2._hero.001-scaled-1-e1740433624987-90x90.jpg 90w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h3 class=\"wp-block-heading\"><a href=\"\/product\/go-direct-co2-gas-sensor\/\">Go Direct<sup>&reg;<\/sup> CO<sub>2<\/sub> Gas Sensor<\/a> (<nobr>GDX-CO2<\/nobr>)\u2014current version<\/h3>\n<ul class=\"wp-block-list\">\n<li>We currently sell the Go Direct CO\u2082 Gas sensor, which was first sold in 2018.<\/li>\n<li>This sensor can connect via USB or Bluetooth. No interface is required.<\/li>\n<li><a href=\"https:\/\/www.vernier.com\/manuals\/gdx-co2\/\">Sensor User Manual<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 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-thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/product.revised.co2-bta._hero._001-300x300.jpg\" alt=\"\" class=\"wp-image-17691\" srcset=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/product.revised.co2-bta._hero._001-300x300.jpg 300w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/product.revised.co2-bta._hero._001-90x90.jpg 90w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h3 class=\"wp-block-heading\"><a href=\"\/product\/co2-gas-sensor\/\">CO<sub>2<\/sub> Gas Sensor<\/a> (<nobr>CO2-BTA<\/nobr>)\u2014current version<\/h3>\n<ul class=\"wp-block-list\">\n<li><span style=\"font-weight: 400;\">Sensors sold from June of 2023 are black with a rounded top. The label is red with white lettering.&nbsp;<\/span><\/li>\n<li>This sensor requires an interface (e.g. <a href=\"http:\/\/www.vernier.com\/go-link\">Go!Link<\/a> or <a href=\"http:\/\/www.vernier.com\/lq-mini\">LabQuest Mini<\/a>).<\/li>\n<li><a href=\"https:\/\/www.vernier.com\/manuals\/co2-bta\/\">Sensor User Manual<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 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-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"337\" src=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2010\/08\/product.co2-bta._hero.001-600x3371-1.jpg\" alt=\"\" class=\"wp-image-7970\"\/><\/figure>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h3 class=\"wp-block-heading\">CO2-BTA\u2014sold from May 2007 to May 2023<\/h3>\n<ul class=\"wp-block-list\">\n<li><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Sensors sold from May 2007 to May of 2023 have a round top, and are black with a black label with white lettering. Two red o-rings frame the label.&nbsp;<\/span><\/span><\/li>\n<li>This sensor requires an interface (e.g. <a href=\"http:\/\/www.vernier.com\/go-link\">Go!Link<\/a> or <a href=\"http:\/\/www.vernier.com\/lq-mini\">LabQuest Mini<\/a>).<\/li>\n<li><a href=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2025\/04\/CO2-BTA.pdf\">Sensor User Manual<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 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-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1771\" height=\"1301\" src=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/image-5.png\" alt=\"\" class=\"wp-image-17692\" srcset=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/image-5.png 1771w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/image-5-600x441.png 600w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/image-5-1024x752.png 1024w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/image-5-768x564.png 768w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/image-5-1536x1128.png 1536w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2014\/11\/image-5-271x198.png 271w\" sizes=\"auto, (max-width: 1771px) 100vw, 1771px\" \/><\/figure>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h3 class=\"wp-block-heading\">CO2-BTA\u2014sold before April 2007<\/h3>\n<ul class=\"wp-block-list\">\n<li><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Sensors sold before April 2007 are rectangular in shape with a sensor shaft extending from the box. They are black with a white label with teal lettering.<\/span><\/span><\/span><\/li>\n<li>This sensor requires an interface (<a href=\"http:\/\/www.vernier.com\/lq-mini\">LabQuest Mini<\/a>). It cannot be used with a Go!Link interface.<\/li>\n<li><a href=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2025\/02\/co2.pdf\">Sensor User Manual<\/a><\/li>\n<\/ul>\n<p><strong>Note: <\/strong><span style=\"font-weight: 400;\">An even earlier version of this box style sensor, last sold in the late 1990&#8217;s, used a 5-pin DIN connector and did not auto-ID.<\/span><\/p>\n<\/div>\n<\/div>\n<p><span style=\"font-weight: 400;\"><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>\u2014current version \u2014current version CO2-BTA\u2014sold from May 2007 to May 2023 CO2-BTA\u2014sold before April 2007 Note: An even earlier version of this box style sensor,&#8230;<\/p>\n","protected":false},"author":1207,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[2083,5679,1182],"class_list":["post-3351","post","type-post","status-publish","format-standard","hentry","tag-co2-gas-sensor","tag-co2-sensor-form","tag-co2-bta"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/3351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/1207"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=3351"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/3351\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=3351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=3351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=3351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}