[{"sku":"MX20-0x","title":"HOBO MX20 Research-Grade Water Level Data Logger","subtitle":"with Easy, Fast Bluetooth Wireless Offload","variant_product_name":"HOBO MX Water Level 4m (13') Stainless Steel","unit_price":"659.00","brands":["HOBO"],"region":null,"service_plans":[],"parcel_length":"3.25","parcel_width":"3.25","parcel_height":"8.00","parcel_weight":"0.75","sellable":true,"published":true,"product_page_url":"\/products\/data-loggers\/mx20-0x","nid":"55771","product_description":"<p>Delivering the highest accuracy in a rugged design, the wireless MX20 data logger provides research-grade measurements for professional water level monitoring applications in both freshwater and saltwater environments, and features convenient Bluetooth for seamless set-up, configuration, and data offloading. <\/p><p>An integrated absolute pressure sensor eliminates the need for cumbersome vent tubes or desiccants to maintain, and its rugged housing makes it this ideal for long-term deployments, recording water level and temperature up to 250-foot depths. The stainless steel model is ideal for shallow wells, streams, lakes, freshwater wetlands, while the corrosion-resistant Titanium model is well-suited to tidal areas, brackish wetlands, and other seawater environments. This logger's slim, compact design allows it to fit where larger instruments cannot\u2014suiting it well to the small casing diameters groundwater wells often used in environmental remediation and regulatory monitoring applications.<\/p><p>A scalable solution that simplifies workflows and data collection from large numbers of wells for hydrologists, field technicians, mitigation specialists, and others, MX20 loggers can offload data to <a href=\"\/node\/15531\" target=\"_blank\" data-entity-type=\"node\" data-entity-uuid=\"7079a80e-e3c0-4257-b212-3ffc9d4632b8\" data-entity-substitution=\"canonical\">LI-COR Cloud\u00ae software<\/a> with an accompanying <a href=\"\/node\/22186\" target=\"_blank\" data-entity-type=\"node\" data-entity-uuid=\"966bd229-b4ee-4a18-bd57-2b0f44176651\" data-entity-substitution=\"canonical\">MX Data Plan<\/a>, which gives users access to a range of time-saving tools. <\/p>","add_on_products":{"title":"Recommended Products","items":["MX-Data","MX801-CTD-01"]},"applications":["Environmental Research & Protection","Climate","Environmental Compliance","Green Space","Ecology","Water Resource Management","Aquatic Ecology","Water Quality & Compliance","Hydrology & Groundwater Monitoring","Watershed Management","Wetland & Stormwater","Dam Management","Agricultural Monitoring","Irrigation & Water"],"brand":"HOBO","communication":"Bluetooth","compatibility_callout":["HOBOconnect"],"compatible_items":{"Accessory":{"Stainless_Steel_Cable_Crimps":{"items":["CABLE-1-300","CABLE-1-50","CABLE-1-CRIMP"]},"Well_Caps":{"items":["WELL-CAP-01","WELL-CAP-02","WELL-KIT-S","84-000009","84-000010","84-000012"]},"Compliance_Certificates":{"items":["COMPLIANCE CERT"]},"Accessories":{"items":["ME-BP"]}},"Communications":{"Communications":{"items":["MX-Speed","MX-Data"]}},"Kits":{"Kits":{"items":["WELL-KIT-P"]}}},"compliance_marks":["Conformit\u00e9 Europ\u00e9ene (CE)","Federal Communications Commission (FCC)","UK Conformity Assessed (UKCA)","National Communications Commission (NCC)","Regulatory Compliance Mark (RCM)"],"country":"US","customers_also_bought":["MX2001","RG3","MX801-CTD-0X","U26-001"],"field_documents":[{"nid":56011},{"nid":55901}],"environment":["Outdoor","Water"],"fbt_title":"You Might Also Like:","important_information":"Requires a compatible mobile device or Windows computer and the HOBOconnect app. System requirements can be found at the bottom of the HOBOconnect software page. ","logger_sensor_type":"integrated_sensors","measurement":["Absolute Pressure ","Barometric Pressure ","Water Level ","Water Temperature "],"message_boxes":"298931, 2248001","not_a_sku":"0","parcel_status":"default","primary_measurement":"Water Level","product_battery":"factory_replacement","product_family_series":"MX Family","features":"<ul><li data-list-item-id=\"e49d47881ac786872a7bac7aedf6ac2b5\">Research-grade accuracy supports groundwater studies, regulatory reporting, water resource management, scientific research and other professional applications<\/li><li data-list-item-id=\"e9a1ce6e7913749332492cc8f4b1a497a\">Rugged construction endures for long-term monitoring up to 10 years<\/li><li data-list-item-id=\"ead72e2a5029719f8cea78b1ab3f5a07f\">Time-saving wireless data offload from integrated Bluetooth simplifies workflows<\/li><li data-list-item-id=\"e8c5417daaf49485ae90d343b2aa0784d\">HOBOconnect mobile app provides easy conversion to accurate water level reading, fully compensated for barometric pressure, temperature, and water density<\/li><li data-list-item-id=\"e7e4babab271d57ca5715f4c8e832c620\">Cost-effective performance solution for monitoring large number of wells\/locations<\/li><li data-list-item-id=\"e300fc92f1a57d89f192d08977bb2f717\">Reliable absolute pressure sensor eliminates the need for vent tubes prone to clogging or freezing and desiccants<\/li><li data-list-item-id=\"e961dc68fdcab07d7e45fe4fce8d3a4bc\">Available in four depth ranges<\/li><li data-list-item-id=\"e5f964276de99a0145e0f5c3d679182be\">Compact-diameter design allows deployment in narrow wells while leaving room for suspension cables and other equipment<\/li><li data-list-item-id=\"e3bb8f3e6e4683e2f49c7c64299c5fceb\">Available in stainless steel (freshwater) and Titanium (saltwater) versions<\/li><li data-list-item-id=\"e7d15029db4a88decfdf0f9e64963d50d\">3-point NIST-traceable calibration certificate included<\/li><\/ul><h5>Benefits of LI-COR Cloud Monitoring Software<\/h5><ul><li data-list-item-id=\"e7e22b398a99ed0c3cb6dc4433ac817a1\">Access monitoring data from anywhere<\/li><li data-list-item-id=\"e1a6eb54e3d5f73d6312359e6b0ec7f6f\">Visualize, analyze, and share data with your team<\/li><li data-list-item-id=\"eacc1cc37d4bcce1860582409dd88cfdc\">Securely upload and manage field data in LI-COR Cloud<\/li><\/ul>","product_page_format":"pdp_2026","specifications":[{"type":"Product Specifications","revision_default":"1","revision_translation_affected":"1","field_hide_in_compare":"0","field_hide_on_specs_tab":"0","field_specification_group_label":"Pressure (Absolute) and Water Level Measurements MX20-01 | MX20-01-Ti","field_specification_items":[{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Operation Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Factory Calibrated Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"69 to 207 kPa (10 to 30 psia), 0\u00b0 to 40\u00b0C (32\u00b0 to 104\u00b0F)"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Burst Pressure","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"310 kPa (45 psia) or 18 m (60 ft) depth"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Water Level Accuracy*","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Typical error: \u00b10.05% FS, 1.0 cm (0.03 ft) water Maximum error: \u00b10.1% FS, 3 cm (0.1 ft) water"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Raw Pressure Accuracy**","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"\u00b10.3% FS, 0.62 kPa (0.09 psi) maximum error"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Resolution","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"<0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Pressure Response Time (90%)***","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"<1 second; measurement accuracy also depends on temperature response time"}]}]},{"type":"Product Specifications","revision_default":"1","field_hide_in_compare":"0","field_hide_on_specs_tab":"0","field_specification_group_label":"Pressure (Absolute) and Water Level Measurements MX20-02 | MX20-02-Ti","field_specification_items":[{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Operation Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at 3,000 m (10,000 ft) of altitude"}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Factory Calibrated Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"69 to 400 kPa (10 to 58 psia), 0\u00b0 to 40\u00b0C (32\u00b0 to 104\u00b0F)"}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Burst Pressure","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"500 kPa (72.5 psia) or 40.8 m (134 ft) depth"}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Water Level Accuracy*","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Typical error: \u00b10.05% FS, 1.5 cm (0.05 ft) water "},{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Maximum error: \u00b10.1% FS, 3 cm (0.1 ft) water"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Raw Pressure Accuracy**","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"\u00b10.3% FS, 1.20 kPa (0.17 psi) maximum error"}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Resolution","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"<0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water"}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Pressure Response Time (90%)***","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"<1 second; measurement accuracy also depends on temperature response time"}]}]},{"type":"Product Specifications","revision_default":"1","revision_translation_affected":"1","field_hide_in_compare":"0","field_hide_on_specs_tab":"0","field_specification_group_label":"Pressure (Absolute) and Water Level Measurements MX20-03 | MX20-03-Ti","field_specification_items":[{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Operation Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"0 to 850 kPa (0 to 123.3 psia); approximately 0 to 76.5 m (0 to 251 ft) of water depth at sea level, or 0 to 79.5 m (0 to 262 ft) of water at 3,000 m (10,000 ft) of altitude"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Factory Calibrated Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"69 to 207 kPa (10 to 30 psia), 0\u00b0 to 40\u00b0C (32\u00b0 to 104\u00b0F)"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Burst Pressure","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"1200 kPa (174 psia) or 112 m (368 ft) depth"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Water Level Accuracy*","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","revision_translation_affected":"1","field_spec_single_value":"Typical error: \u00b10.05% FS, 3.8 cm (0.125 ft) water"},{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Maximum error: \u00b10.1% FS, 7.6 cm (0.25 ft) water"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Raw Pressure Accuracy**","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"\u00b10.3% FS, 2.55 kPa (0.37 psi) maximum error"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Resolution","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Pressure Response Time (90%)***","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"<1 second; measurement accuracy also depends on temperature response time"}]}]},{"type":"Product Specifications","revision_default":"1","revision_translation_affected":"1","field_hide_in_compare":"0","field_hide_on_specs_tab":"0","field_specification_group_label":"Pressure (Absolute) and Water Level Measurements MX20-04 | MX20-04-Ti","field_specification_items":[{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Operation Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Factory Calibrated Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"69 to 145 kPa (10 to 21 psia), 0\u00b0 to 40\u00b0C (32\u00b0 to 104\u00b0F)"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Burst Pressure","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"310 kPa (45 psia) or 18 m (60 ft) depth"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Water Level Accuracy*","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","revision_translation_affected":"1","field_spec_single_value":"Typical error: \u00b10.075% FS, 0.3 cm (0.01 ft) water Maximum error: \u00b10.15% FS, 0.6 cm (0.02 ft) water"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Raw Pressure Accuracy**","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"\u00b10.3% FS, 0.43 kPa (0.063 psi) maximum error"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Resolution","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Pressure Response Time (90%)***","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"<1 second; measurement accuracy also depends on temperature response time"}]}]},{"type":"Product Specifications","revision_default":"1","revision_translation_affected":"1","field_hide_in_compare":"0","field_hide_on_specs_tab":"0","field_specification_group_label":"Temperature Measurements (All Models)","field_specification_items":[{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Operation Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_imperial_value":"-4\u00b0 to 122\u00b0F","field_spec_metric_value":"-20\u00b0 to 50\u00b0C "}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Accuracy","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"\u00b10.2\u00b0C from 0\u00b0 to 50\u00b0C (\u00b10.36\u00b0F from 32\u00b0 to 122\u00b0F)"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Resolution","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"0.002\u00b0C at 25\u00b0C (0.004\u00b0F at 77\u00b0F)"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Response Time (90%)","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"5 minutes in water (typical)"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Stability (Drift)","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"0.1\u00b0C (0.18\u00b0F) per year"}]}]},{"type":"Product Specifications","revision_default":"1","revision_translation_affected":"1","field_hide_in_compare":"0","field_hide_on_specs_tab":"0","field_specification_group_label":"Logger","field_specification_items":[{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Wireless Standard","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Bluetooth 5 LE"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Transmission Range","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Approximately 3-10 ft line-of-sight"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Radio Power","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"1mW (0 dBm)"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Real-time Clock","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_imperial_value":"32\u00b0 to 122\u00b0F","field_spec_metric_value":"\u00b1 1 minute per month 0\u00b0 to 50\u00b0C "}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Battery","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"2\/3 AA, 3.6 Volt lithium, factory-replaceable"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Battery Life (Typical Use)","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"3 years with 1-minute logging, Bluetooth always on"}]},{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"7 years with 1-minute logging, Bluetooth and LED off"}]},{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"10 years with 5-minute logging, Bluetooth and LED off"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Memory ","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_value":"Approximately 400,000 sets of pressure and temperature measurements"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Weight","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"Stainless steel models: approximately 210 g (7.4 oz)"},{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"Titanium models: approximately 140 g (4.8 oz)"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Dimensions","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"2.46 cm (0.97 inches) diameter, 15 cm (5.9 inches) length; mounting hole 6.3 mm (0.25 inches) diameter"}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Wetted Materials","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"316 stainless steel, Viton\u00ae o-rings, acetyl cap, ceramic sensor"},{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Titanium models: Titanium, Viton O-rings, acetal cap, ceramic sensor"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Logging Modes","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Fixed-interval (normal or statistics), burst or multiple intervals with up to 8 user-defined intervals and durations; logging intervals from 1 second to 18 hours. Refer to the HOBOconnect User\u2019s Guide for details."}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_specification_label":"Launch Modes","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Immediate start and delayed start"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Start Modes","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Immediate, next interval, date & time, button start (fob or app) "}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Stop Modes","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Memory full, never stop (overwrite oldest data), date & time, or after set logging period "}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Pause","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1"},{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Pause and restart with HOBOconnect app"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Alarms","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1"},{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Log high- or low-alarm events; alarm status shown in HOBOconnect app "}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Battery Indication","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","revision_translation_affected":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Battery status shown in HOBOconnect app (approximate)"}]}]},{"type":"Product Specifications - Item","revision_default":"1","revision_translation_affected":"1","field_specification_label":"Environmental Rating","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_value":"IP68"}]}]},{"type":"Simple text","revision_default":"1","field_description":"<h5>NOTES<\/h5><p>* Water Level Accuracy: With accurate reference water level measurement, known water density, accurate barometric compensation data, and a stable temperature environment.<br> <br>** Raw Pressure Accuracy: Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors.<br> <br>*** Changes in Temperature: Allow 10 minutes in water to achieve full temperature compensation of the pressure sensor. Maximum error due to rapid thermal changes is approximately 0.5%.<\/p>"},{"type":"Simple text","revision_default":"1","field_description":"<p style=\"color:#000000;font:17.0px 'system-ui';margin:0.0px 0.0px 16.0px;\"> <\/p><p style=\"font:17.0px 'system-ui';margin:0.0px;\"><span style=\"font-family:'system-ui';font-size:17.00px;font-style:normal;font-weight:normal;\"><img src=\"blob:https:\/\/www.onsetcomp.com\/2903ed92-1f07-41ec-ba7a-f83ec324efcf\" alt=\"Attachment.jpeg\"><\/span><\/p>"}],"product_status":"active","product_type":"Data Loggers","product_variants":{"variation_label":"Depth & Deployment Environment ","items":[{"sku":"MX20-01","title":"HOBO MX Water Level 9m (30') Stainless Steel","variation":" 30-foot Freshwater","variant_status":"active","price":"659.00","non_shippable":false},{"sku":"MX20-01-Ti","title":"HOBO MX Water Level 9m (30') Stainless Steel","variation":"30-foot Saltwater","variant_status":"active","price":"799.00","non_shippable":false},{"sku":"MX20-02","title":"HOBO MX Water Level 30m (100') Stainless Steel","variation":"100-foot Freshwater","variant_status":"active","price":"659.00","non_shippable":false},{"sku":"MX20-02-Ti","title":"HOBO MX Water Level 30m (100') Stainless Steel","variation":"100-foot Saltwater","variant_status":"active","price":"799.00","non_shippable":false},{"sku":"MX20-03","title":"HOBO MX Water Level 76m (250') Stainless Steel","variation":"250-foot Freshwater","variant_status":"active","price":"659.00","non_shippable":false},{"sku":"MX20-03-Ti","title":"HOBO MX Water Level 76m (250') Stainless Steel","variation":"250-foot Saltwater","variant_status":"active","price":"799.00","non_shippable":false},{"sku":"MX20-04","title":"HOBO MX Water Level 4m (13') Stainless Steel","variation":"13-foot Freshwater","variant_status":"active","price":"659.00","non_shippable":false},{"sku":"MX20-04-Ti","title":"HOBO MX Water Level 4m (13') Stainless Steel","variation":"13-foot Saltwater","variant_status":"active","price":"799.00","non_shippable":false}]},"promote_measurement":["Absolute Pressure ","Water Level ","Water Temperature "],"search_keys":"water level","solution":["Stand-alone Data Loggers ","Stand-alone Optical Data Loggers ","Waterproof Stand-alone Data Loggers "],"trust_strip":["Bluetooth wireless offload \u2013 no vent tubes needed","Research-grade accuracy; monitors to 250-ft depth","Titanium option for saltwater\/tidal environments","Slim design fits small-diameter groundwater wells"],"warranty":"1","warranty_premium":"1","digital_item":"0"},[{"nid":"56011","uuid":"9bf03d3e-264f-4f8d-a607-867be5ff818b","vid":"137796","langcode":"en","revision_timestamp":"1778219305","status":"1","title":"MX20 Water Level Logger Quick Start Guide","created":"1778219094","changed":"1778219305","promote":"0","sticky":"0","default_langcode":"1","revision_default":"1","revision_translation_affected":"1","path":{"alias":"\/resources\/documentation\/mx20-water-level-logger-quick-start-guide","pid":"127131","langcode":"en"},"applications":["Environmental Research & Protection","Climate","Environmental Compliance","Water Resource Management","Aquatic Ecology","Water Quality & Compliance","Hydrology & Groundwater Monitoring","Watershed Management","Wetland & Stormwater","Dam Management"],"archive_resource":"0","brand":"HOBO","documentation_files":{"English":"https:\/\/dev-d9.onsetcomp.com\/sites\/default\/files\/2026-07\/30248-B%20MAN-QSG-MX20-web.pdf"},"documentation_hoboconnect":"0","documentation_intemp_app":"0","documentation_is_datasheet":"0","environment":["Water"],"form_type":"default","hoboconnect_docs_sorting":"0","hobomobile_docs_sorting":"0","intemp_cx_docs_sorting":"0","product_family_series":"MX Family","resource_topic":["Getting Started"],"resource_type":"Documentation"},{"nid":"55901","uuid":"5c88040f-f1bc-4ac5-853d-fbed060baf7f","vid":"151721","langcode":"en","revision_timestamp":"1780428600","status":"1","title":"MX20 User Guide","created":"1776791589","changed":"1780428600","promote":"0","sticky":"0","default_langcode":"1","revision_default":"1","revision_translation_affected":"1","path":{"alias":"\/resources\/documentation\/mx20-user-guide","pid":"126761","langcode":"en"},"applications":["Environmental Research & Protection","Climate","Environmental Compliance","Water Resource Management","Aquatic Ecology","Water Quality & Compliance","Hydrology & Groundwater Monitoring","Watershed Management","Wetland & Stormwater","Dam Management","Irrigation & Water"],"archive_resource":"0","brand":"HOBO","documentation_files":{"English":"https:\/\/dev-d9.onsetcomp.com\/sites\/default\/files\/2026-06\/30244-A%20MX20%20Manual.pdf"},"documentation_hoboconnect":"0","documentation_intemp_app":"0","documentation_is_datasheet":"0","environment":["Outdoor","Water"],"form_type":"default","hoboconnect_docs_sorting":"0","hobomobile_docs_sorting":"0","intemp_cx_docs_sorting":"0","resource_type":"Documentation"}]]
MX20-0x
HOBO MX20 Research-Grade Water Level Data Logger
Delivering the highest accuracy in a rugged design, the wireless MX20 data logger provides research-grade measurements for professional water level monitoring applications in both freshwater and saltwater environments, and features convenient Bluetooth for seamless set-up, configuration, and data offloading.
An integrated absolute pressure sensor eliminates the need for cumbersome vent tubes or desiccants to maintain, and its rugged housing makes it this ideal for long-term deployments, recording water level and temperature up to 250-foot depths. The stainless steel model is ideal for shallow wells, streams, lakes, freshwater wetlands, while the corrosion-resistant Titanium model is well-suited to tidal areas, brackish wetlands, and other seawater environments. This logger's slim, compact design allows it to fit where larger instruments cannot—suiting it well to the small casing diameters groundwater wells often used in environmental remediation and regulatory monitoring applications.
A scalable solution that simplifies workflows and data collection from large numbers of wells for hydrologists, field technicians, mitigation specialists, and others, MX20 loggers can offload data to LI-COR Cloud® software with an accompanying MX Data Plan, which gives users access to a range of time-saving tools.