{"id":47194,"date":"2026-11-10T14:34:52","date_gmt":"2026-11-10T04:04:52","guid":{"rendered":"https:\/\/www.onetemp.com.au\/?post_type=product&#038;p=47194"},"modified":"2026-11-12T09:28:16","modified_gmt":"2026-11-11T22:58:16","slug":"hobo-mx801-conductivity-temperature-depth-data-logger-kit","status":"publish","type":"product","link":"https:\/\/www.onetemp.com.au\/nz\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/","title":{"rendered":"HOBO MX801 Conductivity, Temperature &#038; Depth Data Logger Kit"},"content":{"rendered":"<p>The HOBO MX801 Conductivity, Temperature and Depth (CTD) Data Logger measures conductivity, salinity and depth in fresh or saltwater. From its readings it calculates specific conductance, salinity and total dissolved solids (TDS).<\/p>\n<p>The logger records absolute pressure, and HOBOconnect software converts it to water level. You can add dissolved oxygen monitoring with a 2-sensor adapter. For barometric compensation, use a <a href=\"https:\/\/www.onetemp.com.au\/nz\/product\/hobo-mx20l-water-level-bluetooth-data-logger\/\" target=\"_blank\" rel=\"noopener\">HOBO MX20L Water Level logger<\/a> as a reference.<\/p>\n<p>Data is offloaded over Bluetooth using the HOBOconnect app on a compatible mobile device or Windows computer.<\/p>\n<h3>Key features<\/h3>\n<ul>\n<li>4-electrode conductivity sensor with a wide measurement range for freshwater or saltwater<\/li>\n<li>Centrally located conductivity sensor to minimise the effects of stilling wells and protective guards<\/li>\n<li>Durable ceramic water level sensor in the sensor tip for accurate shallow water level readings<\/li>\n<li>1&#8243; diameter for narrow wells<\/li>\n<li>Temperature sensor near the tip for fast response<\/li>\n<li>Specially treated stainless steel that holds up in saltwater<\/li>\n<\/ul>\n<h3>Depth range options<\/h3>\n<ul>\n<li>MX801-CTD-04: 4 m<\/li>\n<li>MX801-CTD-01: 9 m<\/li>\n<li>MX801-CTD-02: 30 m<\/li>\n<li>MX801-CTD-03: 76 m<\/li>\n<\/ul>\n<p><strong>Need to track additional parameters, like Dissolved Oxygen or Depth?<\/strong><br \/>\nNo problem\u2014 Learn more about MX800 Multiparameter Data Loggers and configure a customised version <a href=\"https:\/\/www.onetemp.com.au\/nz\/product\/hobo-mx800-series-interchangeable-sensors-logger-options\/\">HERE<\/a> &gt;&gt;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Measure conductivity, salinity, temperature and water level in fresh or saltwater with one kit. The HOBO MX801 CTD fits 1&#8243; wells, transfers data over Bluetooth, and is built to stay deployed in harsh conditions.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>To order: Select one sensor depth below to complete your kit.<\/strong><\/p>","protected":false},"featured_media":47195,"template":"","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"inline_featured_image":false,"_exactmetrics_skip_tracking":false,"_monsterinsights_skip_tracking":false},"product_brand":[],"product_cat":[15],"product_tag":[],"application":[363],"connectivity-output":[79],"environment":[88],"instrument-type":[189],"manufacturer":[263],"measurement-input":[102,127],"class_list":["post-47194","product","type-product","status-publish","has-post-thumbnail","product_cat-products","application-water-quality","connectivity-output-bluetooth","environment-underwater-monitoring","instrument-type-data-loggers","manufacturer-hobo-data-loggers","measurement-input-conductivity","measurement-input-level","first","instock","virtual","taxable","purchasable","product-type-bundle"],"composite_virtual":false,"composite_aggregate_weight":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":"","bundle_virtual":false,"bundle_layout":"default","bundle_add_to_cart_form_location":"default","bundle_editable_in_cart":false,"bundle_sold_individually_context":"product","bundle_item_grouping":"parent","bundle_min_size":2,"bundle_max_size":"","bundle_price":{"price":{"min":{"incl_tax":"4600.67","excl_tax":"4600.67"},"max":{"incl_tax":"13497.59","excl_tax":"13497.59"}},"regular_price":{"min":{"incl_tax":"4600.67","excl_tax":"4600.67"},"max":{"incl_tax":"13497.59","excl_tax":"13497.59"}}},"bundled_items":[{"bundled_item_id":3310,"product_id":44976,"menu_order":0,"quantity_min":1,"quantity_max":1,"quantity_default":1,"priced_individually":true,"shipped_individually":false,"override_title":false,"title":"HOBO MX801 Submersible Logger","override_description":true,"description":"","optional":false,"hide_thumbnail":true,"discount":"","sign_up_discount":"","override_variations":false,"allowed_variations":[],"override_default_variation_attributes":false,"default_variation_attributes":[],"single_product_visibility":"visible","cart_visibility":"visible","order_visibility":"visible","single_product_price_visibility":"visible","cart_price_visibility":"visible","order_price_visibility":"visible","disable_addons":false,"stock_status":"in_stock"},{"bundled_item_id":3314,"product_id":44804,"menu_order":1,"quantity_min":1,"quantity_max":1,"quantity_default":1,"priced_individually":true,"shipped_individually":false,"override_title":true,"title":"4m Depth CTD Sensor","override_description":true,"description":"","optional":true,"hide_thumbnail":true,"discount":"","sign_up_discount":"","override_variations":false,"allowed_variations":[],"override_default_variation_attributes":false,"default_variation_attributes":[],"single_product_visibility":"visible","cart_visibility":"visible","order_visibility":"visible","single_product_price_visibility":"visible","cart_price_visibility":"visible","order_price_visibility":"visible","disable_addons":false,"stock_status":"in_stock"},{"bundled_item_id":3315,"product_id":44803,"menu_order":2,"quantity_min":1,"quantity_max":1,"quantity_default":1,"priced_individually":true,"shipped_individually":false,"override_title":true,"title":"9m Depth HOBO CTD","override_description":true,"description":"","optional":true,"hide_thumbnail":true,"discount":"","sign_up_discount":"","override_variations":false,"allowed_variations":[],"override_default_variation_attributes":false,"default_variation_attributes":[],"single_product_visibility":"visible","cart_visibility":"visible","order_visibility":"visible","single_product_price_visibility":"visible","cart_price_visibility":"visible","order_price_visibility":"visible","disable_addons":false,"stock_status":"in_stock"},{"bundled_item_id":3316,"product_id":44802,"menu_order":3,"quantity_min":1,"quantity_max":1,"quantity_default":1,"priced_individually":true,"shipped_individually":false,"override_title":true,"title":"30m Depth CTD Sensor","override_description":true,"description":"","optional":true,"hide_thumbnail":true,"discount":"","sign_up_discount":"","override_variations":false,"allowed_variations":[],"override_default_variation_attributes":false,"default_variation_attributes":[],"single_product_visibility":"visible","cart_visibility":"visible","order_visibility":"visible","single_product_price_visibility":"visible","cart_price_visibility":"visible","order_price_visibility":"visible","disable_addons":false,"stock_status":"in_stock"},{"bundled_item_id":3317,"product_id":44801,"menu_order":4,"quantity_min":1,"quantity_max":1,"quantity_default":1,"priced_individually":true,"shipped_individually":false,"override_title":true,"title":"76m Depth CTD Sensor","override_description":true,"description":"","optional":true,"hide_thumbnail":true,"discount":"","sign_up_discount":"","override_variations":false,"allowed_variations":[],"override_default_variation_attributes":false,"default_variation_attributes":[],"single_product_visibility":"visible","cart_visibility":"visible","order_visibility":"visible","single_product_price_visibility":"visible","cart_price_visibility":"visible","order_price_visibility":"visible","disable_addons":false,"stock_status":"in_stock"}],"bundle_sell_ids":[],"bundle_sells_title":"","bundle_sells_discount":"","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HOBO MX801 CTD Data Logger | Conductivity, Temp &amp; Depth<\/title>\n<meta name=\"description\" content=\"Monitor conductivity, salinity, temperature and water level in fresh or saltwater with the HOBO MX801 CTD logger. Fits 1&quot; wells. Australian distributor.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.onetemp.com.au\/nz\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HOBO MX801 CTD Data Logger | Conductivity, Temp &amp; Depth\" \/>\n<meta property=\"og:description\" content=\"Monitor conductivity, salinity, temperature and water level in fresh or saltwater with the HOBO MX801 CTD logger. Fits 1&quot; wells. Australian distributor.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.onetemp.com.au\/nz\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/\" \/>\n<meta property=\"og:site_name\" content=\"OneTemp\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/OneTempAust\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-11T22:58:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/11\/MX801-CTD-Kit-Product-Thumbnail.png\" \/>\n\t<meta property=\"og:image:width\" content=\"330\" \/>\n\t<meta property=\"og:image:height\" content=\"323\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\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=\"9 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"HOBO MX801 CTD Data Logger | Conductivity, Temp & Depth","description":"Monitor conductivity, salinity, temperature and water level in fresh or saltwater with the HOBO MX801 CTD logger. Fits 1\" wells. Australian distributor.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.onetemp.com.au\/nz\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/","og_locale":"en_US","og_type":"article","og_title":"HOBO MX801 CTD Data Logger | Conductivity, Temp & Depth","og_description":"Monitor conductivity, salinity, temperature and water level in fresh or saltwater with the HOBO MX801 CTD logger. Fits 1\" wells. Australian distributor.","og_url":"https:\/\/www.onetemp.com.au\/nz\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/","og_site_name":"OneTemp","article_publisher":"https:\/\/www.facebook.com\/OneTempAust\/","article_modified_time":"2026-11-11T22:58:16+00:00","og_image":[{"width":330,"height":323,"url":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/11\/MX801-CTD-Kit-Product-Thumbnail.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"9 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["WebPage","ItemPage"],"@id":"https:\/\/www.onetemp.com.au\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/","url":"https:\/\/www.onetemp.com.au\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/","name":"HOBO MX801 CTD Data Logger | Conductivity, Temp & Depth","isPartOf":{"@id":"https:\/\/www.onetemp.com.au\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.onetemp.com.au\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/#primaryimage"},"image":{"@id":"https:\/\/www.onetemp.com.au\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/#primaryimage"},"thumbnailUrl":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/11\/MX801-CTD-Kit-Product-Thumbnail.png","datePublished":"2026-11-10T04:04:52+00:00","dateModified":"2026-11-11T22:58:16+00:00","description":"Monitor conductivity, salinity, temperature and water level in fresh or saltwater with the HOBO MX801 CTD logger. Fits 1\" wells. Australian distributor.","breadcrumb":{"@id":"https:\/\/www.onetemp.com.au\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/#breadcrumb"},"inLanguage":"en-NZ","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.onetemp.com.au\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/"]}]},{"@type":"ImageObject","inLanguage":"en-NZ","@id":"https:\/\/www.onetemp.com.au\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/#primaryimage","url":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/11\/MX801-CTD-Kit-Product-Thumbnail.png","contentUrl":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2026\/11\/MX801-CTD-Kit-Product-Thumbnail.png","width":330,"height":323},{"@type":"BreadcrumbList","@id":"https:\/\/www.onetemp.com.au\/product\/hobo-mx801-conductivity-temperature-depth-data-logger-kit\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"","item":"https:\/\/www.onetemp.com.au\/nz"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/www.onetemp.com.au\/shop\/"},{"@type":"ListItem","position":3,"name":"HOBO MX801 Conductivity, Temperature &#038; Depth Data Logger Kit"}]},{"@type":"WebSite","@id":"https:\/\/www.onetemp.com.au\/#website","url":"https:\/\/www.onetemp.com.au\/","name":"OneTemp New Zealand","description":"","publisher":{"@id":"https:\/\/www.onetemp.com.au\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.onetemp.com.au\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-NZ"},{"@type":"Organization","@id":"https:\/\/www.onetemp.com.au\/#organization","name":"OneTemp New Zealand","url":"https:\/\/www.onetemp.com.au\/","logo":{"@type":"ImageObject","inLanguage":"en-NZ","@id":"https:\/\/www.onetemp.com.au\/#\/schema\/logo\/image\/","url":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2025\/04\/OneTemp-Logo.jpeg","contentUrl":"https:\/\/www.onetemp.com.au\/wp-content\/uploads\/2025\/04\/OneTemp-Logo.jpeg","width":800,"height":153,"caption":"OneTemp"},"image":{"@id":"https:\/\/www.onetemp.com.au\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/OneTempAust\/","https:\/\/au.linkedin.com\/company\/onetemp-pty-ltd"]}]}},"_links":{"self":[{"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product\/47194","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/media\/47195"}],"wp:attachment":[{"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/media?parent=47194"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product_brand?post=47194"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product_cat?post=47194"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/product_tag?post=47194"},{"taxonomy":"application","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/application?post=47194"},{"taxonomy":"connectivity-output","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/connectivity-output?post=47194"},{"taxonomy":"environment","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/environment?post=47194"},{"taxonomy":"instrument-type","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/instrument-type?post=47194"},{"taxonomy":"manufacturer","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/manufacturer?post=47194"},{"taxonomy":"measurement-input","embeddable":true,"href":"https:\/\/www.onetemp.com.au\/nz\/wp-json\/wp\/v2\/measurement-input?post=47194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}