{"id":4052,"date":"2017-09-08T15:53:52","date_gmt":"2017-09-08T22:53:52","guid":{"rendered":""},"modified":"2025-07-24T14:25:56","modified_gmt":"2025-07-24T21:25:56","slug":"4052","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/4052","title":{"rendered":"Go Direct Surface Temperature Sensor Troubleshooting and FAQs"},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 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\">\n<h3 class=\"wp-block-heading\"><a href=\"\/product\/go-direct-surface-temperature-sensor\/\">Go Direct<sup>&reg;<\/sup> Surface Temperature Sensor<\/a> (<nobr>GDX-ST<\/nobr>)<\/h3>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p class=\"wp-block-paragraph\"><a href=\"\/manuals\/GDX-ST\">Specifications and User Guide<\/a><\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2019\/11\/product.gdx-st._hero.001-scaled.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\">Troubleshooting<\/h3>\n<p class=\"wp-block-paragraph\"><strong>General: <\/strong>Press the power button on the sensor to turn it on. Connect your sensor as described in the <a href=\"https:\/\/www.vernier.com\/til\/get-started\/go-direct\">Getting Started instructions for your device<\/a>.<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>Primary Test: <\/strong>Hold the tip of the sensor in your hand and check for the temperature readings to change.<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Additional Troubleshooting<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/til\/4023\/\">What is the difference between a Go Wireless sensor and a Go Direct sensor?<\/a><\/li>\n<li><a href=\"\/til\/4338\/\">Go Direct Temperature sensor reports a constant non-zero value.<\/a><\/li>\n<li><a href=\"\/til\/11512\/\">My Go Direct Temperature is stuck at 0\u00b0C<\/a><\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n<ul class=\"wp-block-list\">\n<li>Range: \u201325 to 125\u00b0C<\/li>\n<li>Maximum Temperature without causing damage: 150\u00b0C<\/li>\n<li>Handle range: \u201310 to 45\u00b0C <\/li>\n<li>Accuracy: \u00b10.5\u00b0C<\/li>\n<li>Response time (time from 25\u00b0C to 100\u00b0C in water): 5 seconds<\/li>\n<li>Probe dimensions<br \/>\u26ac Probe handle: length 6.8 cm, maximum width 2.25 cm, thickness 1.3 cm<br \/>\u26ac Cable length: 1 m<br \/>\u26ac Submergible section: 7 cm<\/li>\n<li>Connections<br \/>\u26ac Wireless: Bluetooth<sup>\u00ae<\/sup> v4.2 (wireless range 30 m unobstructed) <br \/>\u26ac Wired: USB 2.0 full speed<\/li>\n<li>Battery: <a href=\"http:\/\/www.vernier.com\/gdx-bat-300\">300 mA Li-Poly<\/a><br \/>\u26ac Battery Life (single, full charge): ~24 hours continuous data collection<br \/>\u26ac Battery Life (lifetime): 2 \u2013 5 years (typical)<\/li>\n<\/ul>\n<p class=\"has-very-light-gray-background-color has-background wp-block-paragraph\"><strong>Important:<\/strong> For use in air and water only. For temperature measurements in harsher environments that require a more durable probe, we recommend the <a href=\"\/product\/go-direct-temperature-probe\/\">Go Direct<sup>&reg;<\/sup> Temperature Probe<\/a> (<nobr>GDX-TMP<\/nobr>).<\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Calibration<\/h3>\n<p class=\"wp-block-paragraph\">Calibrate? No. Each sensor is carefully calibrated during the manufacturing process. This sensor cannot be calibrated by the user.<\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Battery Troubleshooting<\/h3>\n<ol class=\"wp-block-list\">\n<li><span style=\"font-weight: 400;\">If the sensor can be turned on when connected by USB but not when disconnected from USB, the battery either needs charging or has reached its end of life and can no longer hold a charge. <\/span><br \/>\u26ac <span style=\"font-weight: 400;\">First, try charging the sensor for several hours. <\/span><\/li>\n<li><span style=\"font-weight: 400;\">If the sensor still won\u2019t turn on when disconnected from USB, try swapping the battery with a working sensor to see if the problem follows the battery or stays with the sensor.<\/span><br \/>\u26ac If the problem stays with the sensor, the battery is probably not the issue.<br \/>\u26ac If the problem follows the battery, <span style=\"font-weight: 400;\">the battery has likely reached its end of life.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">If you intend to use this sensor wirelessly, its battery will need replacing<\/span>.<br \/><span style=\"font-weight: 400;\"><a href=\"\/product\/go-direct-300-mah-replacement-battery\/\">Go Direct<sup>&reg;<\/sup> 300 mAh Replacement Battery<\/a> (<nobr>GDX-BAT-300<\/nobr>)<\/span><\/li>\n<li>See <a href=\"\/til\/15056\/\">How do I replace the battery in a Go Direct Wand-Style Sensor?<\/a> for more information (including a <a href=\"https:\/\/youtu.be\/BRLhaOUjmaI\">video<\/a>).<\/li>\n<\/ol>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p class=\"has-text-align-center has-very-light-gray-background-color has-background wp-block-paragraph\"><span style=\"font-weight: 400;\"><strong>Rechargeable batteries are covered by a one-year warranty.<\/strong><\/span><br \/>Batteries <span style=\"font-weight: 400;\">should last two to five years in typical use. <\/span><\/p>\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-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Related Products<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/micro-usb-to-usb-c-cable\/\">Micro USB to USB-C Cable<\/a> (<nobr>CB-USB-C-MICRO<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-charge-station\/\">Go Direct<sup>&reg;<\/sup> Charge Station<\/a> (<nobr>GDX-CRG<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-sensor-clamp\/\">Go Direct&reg; Sensor Clamp<\/a> (<nobr>GDX-CLAMP<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-temperature-probe\/\">Go Direct<sup>&reg;<\/sup> Temperature Probe<\/a> (<nobr>GDX-TMP<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-wide-range-temperature-probe\/\">Go Direct<sup>&reg;<\/sup> Wide-Range Temperature Probe<\/a> (<nobr>GDX-WRT<\/nobr>)<\/li>\n<li><a href=\"\/product\/surface-temperature-sensor\/\">Surface Temperature Sensor<\/a> (<nobr>STS-BTA<\/nobr>)<\/li>\n<\/ul>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Replacement Parts<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/go-direct-300-mah-replacement-battery\/\">Go Direct<sup>&reg;<\/sup> 300 mAh Replacement Battery<\/a> (<nobr>GDX-BAT-300<\/nobr>)<\/li>\n<li><a href=\"\/product\/micro-usb-cable\/\">Micro USB Cable<\/a> (<nobr>CB-USB-MICRO<\/nobr>)<\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Specifications and User Guide Troubleshooting General: Press the power button on the sensor to turn it on. Connect your sensor as described in the Getting&#8230;<\/p>\n","protected":false},"author":11015,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[6519,6839,6840],"class_list":["post-4052","post","type-post","status-publish","format-standard","hentry","tag-gdxmain","tag-gdxstmain","tag-gdxstsmain"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/4052","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\/11015"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=4052"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/4052\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=4052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=4052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=4052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}