{"id":57943,"date":"2026-02-18T11:50:48","date_gmt":"2026-02-18T10:50:48","guid":{"rendered":"https:\/\/praxas.com\/?post_type=product&#038;p=57943"},"modified":"2026-02-25T11:15:50","modified_gmt":"2026-02-25T10:15:50","slug":"trel30-16u","status":"publish","type":"product","link":"https:\/\/praxas.com\/en\/product\/data-loggers\/temperature-data-loggers\/trel30-16u\/","title":{"rendered":"TREL30-16U Ultra-Low Temperature Logger"},"content":{"rendered":"<p data-start=\"156\" data-end=\"467\">The TREL30-16U represents the next evolution in ultra-low temperature monitoring, purpose-built for the most demanding cold environments. Engineered to deliver precise and reliable measurements down to <strong data-start=\"358\" data-end=\"368\">-90 \u00b0C<\/strong>, it is ideally suited for monitoring sensitive samples, laboratory storage, and dry ice logistics.<\/p>\n<p data-start=\"469\" data-end=\"738\">Designed for reliability in extreme cold, the TREL30-16U is trusted for biological sample storage and pharmaceutical cold chain applications where dry ice is essential. Its robust performance ensures data integrity even in the harshest ultra-low temperature conditions.<\/p>\n<p data-start=\"740\" data-end=\"1030\">Enhancing usability, the TREL30-16U features <strong data-start=\"785\" data-end=\"847\">software-free data downloads via a modern USB-C connection<\/strong>, combining proven reliability with effortless, time-saving convenience. With intuitive operation and improved ease-of-use, it sets a new standard in ultra-low temperature monitoring.<\/p>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>-90\u00b0C to +40\u00b0C<\/li>\n<li>USB-C Connection<\/li>\n<li>17,500+ Sets of Recording<\/li>\n<li>Built in Audible Alarm<\/li>\n<li>Auto-Pause Function<\/li>\n<\/ul>\n","protected":false},"featured_media":57947,"template":"","meta":{"_acf_changed":false,"content-type":"","_uag_custom_page_level_css":""},"product_brand":[],"product_cat":[144,87],"product_tag":[2511,2258],"class_list":{"0":"post-57943","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-data-loggers","7":"product_cat-temperature-data-loggers","8":"product_tag-logtag","9":"product_tag-temperature","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-variable"},"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"acf":[],"spectra_custom_meta":{"classic-editor-remember":["classic-editor"],"_edit_lock":["1774946623:8383"],"_edit_last":["8383"],"copied_media_ids":["a:0:{}"],"referenced_media_ids":["a:5:{i:0;i:57947;i:1;i:57950;i:2;i:57949;i:3;i:57948;i:4;i:19127;}"],"_wpml_word_count":["170"],"_wpml_location_migration_done":["1"],"rank_math_seo_score":["21"],"rank_math_contentai_score":["a:5:{s:8:\"keywords\";s:5:\"74.51\";s:9:\"wordCount\";s:1:\"0\";s:9:\"linkCount\";s:1:\"0\";s:12:\"headingCount\";s:1:\"0\";s:10:\"mediaCount\";s:1:\"0\";}"],"_wcml_custom_prices_status":["1"],"commercekit_gallery_layout":[""],"commercekit_disable_sticky_atc":["0"],"commercekit_wc_video_gallery":["a:0:{}"],"_wcrq_show_quote":["yes"],"_wcrq_show_quote_description":["yes"],"_wcrq_hubspot_portal_id":[""],"_wcrq_hubspot_form_id":[""],"_wcrq_hide_purchase_options":["no"],"total_sales":["0"],"_tax_status":["taxable"],"_tax_class":[""],"_manage_stock":["no"],"_backorders":["no"],"_sold_individually":["no"],"_virtual":["no"],"_downloadable":["no"],"_download_limit":["-1"],"_download_expiry":["-1"],"_stock":[null],"_stock_status":["instock"],"_wc_average_rating":[0],"_wc_review_count":["0"],"_product_version":["10.5.2"],"_wc_gla_visibility":["sync-and-show"],"min_temp":["-90"],"_min_temp":["field_67ea5eb4e0a77"],"max_temp":["40"],"_max_temp":["field_67ea5f81e0a79"],"connectivity":["USB-C"],"_connectivity":["field_64dce263bb57c"],"brand":["LogTag"],"_brand":["field_64ddf62ed2593"],"brand_image":[""],"_brand_image":["field_650c5e7c84cae"],"specifications_table":["<table class=\"specifications\">\r\n<tbody>\r\n<tr>\r\n<td class=\"left-td\">Product Model<\/td>\r\n<td>TREL30-16U (Replaceable Battery)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Sensor Type<\/td>\r\n<td>External Temperature Sensor<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Sensor Measurement Range<\/td>\r\n<td>-90\u00a0\u00b0C to +40\u00a0\u00b0C (-130\u00a0\u00b0F to +104\u00a0\u00b0F)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Operating Temperature Range<\/td>\r\n<td>-30\u00a0\u00b0C to +60\u00a0\u00b0C (-22\u00a0\u00b0F to +140\u00a0\u00b0F)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Storage Temperature Range<\/td>\r\n<td>-10\u00a0\u00b0C to +40\u00a0\u00b0C (14\u00a0\u00b0F to +104\u00a0\u00b0F)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Rated Temperature Reading Accuracy<\/td>\r\n<td>Better than \u00b10.5\u00a0\u00b0C for -20\u00a0\u00b0C to +10\u00a0\u00b0C (-4\u00a0\u00b0F to +50\u00a0\u00b0F)\r\nBetter than \u00b10.7\u00a0\u00b0C for -50\u00a0\u00b0C to -20\u00a0\u00b0C (-58\u00a0\u00b0F to -4\u00a0\u00b0F)\r\nBetter than \u00b10.7\u00a0\u00b0C for +10\u00a0\u00b0C to +30\u00a0\u00b0C (+50\u00a0\u00b0F to +86\u00a0\u00b0F)\r\nBetter than \u00b11.0\u00a0\u00b0C for -80\u00a0\u00b0C to -50\u00a0\u00b0C (-112\u00a0\u00b0F to -58\u00a0\u00b0F)\r\nBetter than \u00b11.0\u00a0\u00b0C for +30\u00a0\u00b0C to +40\u00a0\u00b0C (+86\u00a0\u00b0F to +104\u00a0\u00b0F)\r\nBetter than \u00b11.8\u00a0\u00b0C for -90\u00a0\u00b0C to -80\u00a0\u00b0C (-130\u00a0\u00b0F to -112\u00a0\u00b0F)\r\nActual performance is typically much better than the rated values.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Rated Temperature Reading Resolution<\/td>\r\n<td>0.1\u00a0\u00b0C (0.2\u00a0\u00b0F) for -80\u00a0\u00b0C to +10\u00a0\u00b0C (-112\u00a0\u00b0F to +50\u00a0\u00b0F)\r\n0.2\u00a0\u00b0C (0.4\u00a0\u00b0F) for -90\u00a0\u00b0C to -80\u00a0\u00b0C (-130\u00a0\u00b0F to -112\u00a0\u00b0F)\r\n0.2\u00a0\u00b0C (0.4\u00a0\u00b0F) for +10\u00a0\u00b0C to +20\u00a0\u00b0C (+50\u00a0\u00b0F to +68\u00a0\u00b0F)\r\n0.3\u00a0\u00b0C (0.5\u00a0\u00b0F) for +20\u00a0\u00b0C to +30\u00a0\u00b0C (+68\u00a0\u00b0F to +86\u00a0\u00b0F)\r\n0.5\u00a0\u00b0C (0.9\u00a0\u00b0F) for +30\u00a0\u00b0C to +40\u00a0\u00b0C (+86\u00a0\u00b0F to +104\u00a0\u00b0F)\r\nLogTag Analyzer\u00ae displays to one decimal place. Native resolution is stored in the LogTag\u00ae.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Recording Capacity<\/td>\r\n<td>17,526 temperature readings\r\n60 days @ 5 minute logging\r\nDay summary statistics (LCD): up to 30 days of Max\/Min\/duration and alarm statistics<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Sampling Interval<\/td>\r\n<td>Configurable from 30 seconds to 18 hours<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Logging Start Options<\/td>\r\n<td>Push button start or specific date and time. Optional start delay of up to 18 hours<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Recording Indication<\/td>\r\n<td>State indicator \u201cREC\u201d<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Download Time<\/td>\r\n<td>Typically less than 10 seconds for full memory (17,526 readings) using USB connection<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Environmental<\/td>\r\n<td>IP61 (when vertically mounted or hung)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Power Source<\/td>\r\n<td>3V CR2032 LiMnO<sub>2<\/sub> coin cell battery, user replaceable<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Battery Life<\/td>\r\n<td>1 year storage, followed by 1 year of operation under normal use\r\n(6 minute logging, display checked once daily, monthly data downloads)\r\n<strong>Note:<\/strong> Continuous audible alarm activation will reduce battery life.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Real Time Clock<\/td>\r\n<td>Built-in real time clock\r\nRated accuracy \u00b125ppm @ 25\u00a0\u00b0C (\u22482.5 seconds\/day)\r\nTemperature coefficient: -0.034 \u00b10.006ppm\/\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Standard External Probe Cable Lengths<\/td>\r\n<td>Standard: 1.5m (4\u201911\u201d)\r\nExtended: 3m (9\u201910\u201d) (recommended maximum)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Remote Sensor Cable Type<\/td>\r\n<td>PTFE (FDA food contact rated), coaxial<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Connection Interface<\/td>\r\n<td>USB-C type metal plug<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Size<\/td>\r\n<td>93mm (H) x 54.5mm (W) x 8.6mm (T)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Weight<\/td>\r\n<td>43g (without external probe)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"left-td\">Case Material<\/td>\r\n<td>Polycarbonate<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>"],"_specifications_table":["field_65044e1db92a8"],"display_data_alarm":[""],"_display_data_alarm":["field_667d647bcb066"],"other_features":[""],"_other_features":["field_686fa2aa98dce"],"resources":["<ul class=\"resources-list\">\r\n \t<li style=\"list-style-type: none;\">\r\n<ul class=\"resources-list\">\r\n \t<li><img src=\"https:\/\/praxas.com\/wp-content\/uploads\/document-icon.png\" alt=\"Document icon\" \/><a href=\"https:\/\/praxas.com\/wp-content\/uploads\/TREL30-16U-Brochure.pdf\">LogTag TREL30-16U Brochure<\/a><\/li>\r\n \t<li><img src=\"https:\/\/praxas.com\/wp-content\/uploads\/document-icon.png\" alt=\"Document icon\" \/><a href=\"https:\/\/praxas.com\/wp-content\/uploads\/TREL30-16U-QuickStartGuide.pdf\">LogTag TREL30-16U Quick Start Guide<\/a><\/li>\r\n \t<li><img src=\"https:\/\/praxas.com\/wp-content\/uploads\/document-icon.png\" alt=\"Document icon\" \/><a 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