[{"sku":"MX2502","title":"HOBO MX Underwater PAR Data Logger","subtitle":"Bluetooth logger with PAR, temperature, tilt sensors ","variant_product_name":null,"unit_price":"1199.00","brands":["HOBO"],"region":null,"service_plans":[],"parcel_length":"10.00","parcel_width":"7.00","parcel_height":"4.00","parcel_weight":"1.10","sellable":true,"published":true,"product_page_url":"\/products\/data-loggers\/mx2502","nid":"24416","product_description":"<p>Designed for ecosystem research, protection and restoration, with a compact, rugged, and waterproof design rated for fresh and saltwater environments, the HOBO Bluetooth MX2502 Underwater PAR logger effectively delivers research-grade sensor performance in an easy-to-use, affordable package.&nbsp;<\/p><p>It integrates the LI-COR LI-192 quantum PAR sensor that provides the industry's highest-accuracy underwater light measurement, plus sensors for temperature and tilt<strong>.&nbsp;<\/strong>With both water and air calibration factors, this multiparameter logger provides accurate PAR data in either environment.&nbsp;<\/p><p>This logger is designed to be easily mounted onto third-party wipers like the ZebraTech Hydro-Wiper (sold separately) using the <a href=\"\/node\/25901\" data-entity-type=\"node\" data-entity-uuid=\"0682cd7f-af5e-434c-9b06-ea3b6854501b\" data-entity-substitution=\"canonical\">M-CLP clamp<\/a>, which can be deployed with HOBO's <a href=\"\/node\/25881\" data-entity-type=\"node\" data-entity-uuid=\"e6dce313-36b7-4440-ab1c-5a21726a8492\" data-entity-substitution=\"canonical\">underwater lowering frame<\/a> and\/or rebar stakes using the <a href=\"\/node\/25886\" data-entity-type=\"node\" data-entity-uuid=\"6c8f76d8-e529-4827-bd50-bfbff359c1d6\" data-entity-substitution=\"canonical\">M-BRK-2 mounting bracket<\/a>. Users can deploy this logger in minutes, configure logging intervals via the free <a href=\"\/node\/13586\" target=\"_blank\" data-entity-type=\"node\" data-entity-uuid=\"376293db-28ae-4b1e-8d2a-71154366d7ed\" data-entity-substitution=\"canonical\">HOBOconnect<\/a> app, which allows you to wirelessly retrieve data with your mobile device, and eliminating the need to take your laptop into the field.&nbsp;<\/p>","add_on_products":{"title":"Recommended Products","items":["M-FRM","M-BRK-2","M-CLP"]},"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"],"brand":"HOBO","compatible_items":{"Accessory":{"Mounting":{"items":["M-FRM","M-BRK-2","M-CLP"]}}},"country":"US","field_documents":[{"nid":25906},{"nid":26061},{"nid":55761}],"environment":["Water"],"important_information":"Requires a compatible mobile device or Windows computer and the HOBOconnect app. System requirements for the app can be found at bottom of the HOBOconnect software page.[custom-onset:insert-block:5636]","measurement":["Light (water) ","Tilt\/Acceleration (water) ","Light Intensity ","PAR ","Temperature ","Tilt "],"message_boxes":"295501, 2201931","not_a_sku":"0","page_type":"add-to-cart","features":"<ul><li>Provides the highest accuracy data using the LI-192 Quantum sensor, the industry standard for logger calibration with built-in measurement averaging to filter out environmental noise <\/li><li>Easily attaches to available wipers for keeping the sensor window clear and mounts on available wipers <\/li><li>Streamlined logger configuration, data offload, data visualization and data sharing, all within the free HOBOconnect app <\/li><li>Convenient and reliable wireless data offload eliminates having to open loggers, connect cables or bring laptops to wet locations <\/li><li>Data quality control from a tilt sensor and a water-detect sensor<\/li><li>Provides PAR data for both water and air calibrations<\/li><li>Simplifies data management and reduces the amount of equipment you need to offload data with single platform <\/li><li>Easy data consolidation, access, and visualization with <a href=\"\/products\/software\/licor-cloud\" target=\"_blank\" data-entity-type=\"node\" data-entity-uuid=\"7079a80e-e3c0-4257-b212-3ffc9d4632b8\" data-entity-substitution=\"canonical\" title=\"LI-COR Cloud\">LI-COR Cloud<\/a> and an optional <a href=\"\/products\/software\/mx-data-plans\" target=\"_blank\" data-entity-type=\"node\" data-entity-uuid=\"966bd229-b4ee-4a18-bd57-2b0f44176651\" data-entity-substitution=\"canonical\" title=\"MX Data Plans\">MX data plan<\/a><\/li><li>Supports optimal aquaculture site selection and design<\/li><li>Rugged and reliable housing and sensor materials provide years operation in harsh aquatic environments. <\/li><li>Recalibration options: LI-COR for factory recalibration service or self-calibrating against a precision reference<\/li><\/ul>","product_page_format":"pdp_2026","product_price":"1199.00","specifications":[{"type":"Product Specifications","revision_default":"1","field_hide_in_compare":"0","field_hide_on_specs_tab":"0","field_specification_group_descri":"Measured parameters: PAR with water calibration, PAR with air calibration, temperature, and tilt angle ","field_specification_group_label":"Sensors","field_specification_items":[{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Photosynthetically Active Radiation (PAR) ","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Range: 0-3000 \u00b5mol\/m\u00b2\/s (full sunlight)"}]},{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Accuracy: \u00b15% typical (LI-192 factory calibration)"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Wavelengths","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"400-700 nm with close-to-ideal PAR response"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Cosine Correction","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Optimized for both underwater and atmospheric use"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Temperature","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Range: -20 to 50 \u00b0C (-4 to 122 \u00b0F) non-freezing water"}]},{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Accuracy: \u00b10.2 \u00b0C "}]},{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Resolution: 0.1 \u00b0C"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Tilt Angle","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Range: 0 to 180\u00b0 from vertical"}]},{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Accuracy: \u00b15\u00b0"}]},{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Resolution: 1\u00b0 "}]}]}]},{"type":"Product Specifications","revision_default":"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_items_indent_level":"0","field_specification_label":"Logging Interval","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"User-selectable from 1 second up to 18 hours"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Memory Capacity","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"195,000 sets of measurements"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Water Detect Events ","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Records events when logger is submerged and when it emerges from the water"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Wireless 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":"Up to 30.5 m (100 feet) line-of-sight via Bluetooth Low Energy for wireless data download"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Enclosure Rating","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"IP68 up to 30m"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Battery","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Powered by a factory-replaceable battery with 6-year life at nominal logging interval with Bluetooth off"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Operating Environment","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"-20 to 50C; fresh or saltwater; cannot be frozen in ice "}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Dimensions","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"Diameter: 1.695\" ; Length: 7.190\""}]},{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1"}]}]},{"type":"Product Specifications - Item","revision_default":"1","field_items_indent_level":"0","field_specification_label":"Weight ","field_specification_values":[{"type":"Product Specification - Value","revision_default":"1","field_specification_measurement":[{"type":"Product Specification - Measurement","revision_default":"1","field_spec_single_value":"274 g ( 0.604 lb.) Logger only; With packaging 495 g ( 1.091 Lb.) "}]}]}]}],"product_status":"active","product_type":"Data Loggers","trust_strip":["Bluetooth \u2013 no cables needed for data offload","LI-COR LI-192 sensor: industry-leading PAR accuracy","Waterproof; rated for fresh and saltwater use","Measures PAR, temperature & tilt in one logger"],"warranty":"1","warranty_premium":"1","digital_item":"0"},[{"nid":"25906","uuid":"94adfa6e-3b2a-4999-80e3-b671a2279ad8","vid":"152856","langcode":"en","revision_timestamp":"1782158908","status":"1","title":"MX2502 User Manual","created":"1765312948","changed":"1782158908","promote":"0","sticky":"0","default_langcode":"1","revision_default":"1","revision_translation_affected":"1","path":{"alias":"\/resources\/documentation\/mx2502-user-manual","pid":"66261","langcode":"en"},"applications":["Environmental Research & Protection","Climate","Environmental Compliance","Ecology","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\/2026-03\/29772-A%20MX2502%20Manual.pdf"},"documentation_hoboconnect":"0","documentation_intemp_app":"0","documentation_is_datasheet":"0","environment":["Water"],"hoboconnect_docs_sorting":"0","hobomobile_docs_sorting":"0","intemp_cx_docs_sorting":"0","resource_type":"Documentation"},{"nid":"26061","uuid":"3bdfd7b5-5736-45f3-bdda-e26a7d2cc569","vid":"105161","langcode":"en","revision_timestamp":"1772666843","status":"1","title":"MX2502 Quick Start Guide","created":"1772664773","changed":"1772666843","promote":"0","sticky":"0","default_langcode":"1","revision_default":"1","revision_translation_affected":"1","path":{"alias":"\/resources\/documentation\/mx2502-quick-start-guide","pid":"66736","langcode":"en"},"applications":["Environmental Research & Protection","Climate","Environmental Compliance","Ecology","Water Resource Management","Aquatic Ecology","Water Quality & Compliance","Hydrology & Groundwater Monitoring","Watershed Management","Wetland & Stormwater"],"archive_resource":"0","brand":"HOBO","documentation_files":{"English":"https:\/\/dev-d9.onsetcomp.com\/sites\/default\/files\/2026-03\/29944-A%20MAN-QSG-MX2502.pdf"},"documentation_hoboconnect":"0","documentation_intemp_app":"0","documentation_is_datasheet":"0","environment":["Water"],"hoboconnect_docs_sorting":"0","hobomobile_docs_sorting":"0","intemp_cx_docs_sorting":"0","resource_topic":["Getting Started"],"resource_type":"Documentation"},{"nid":"55761","uuid":"8a38ff4d-3c40-4daf-a859-45919c86783b","vid":"153771","langcode":"en","revision_timestamp":"1784643483","status":"1","title":"MX2502 Accessories Installation Guide","created":"1773850217","changed":"1784643483","promote":"0","sticky":"0","default_langcode":"1","revision_default":"1","revision_translation_affected":"1","path":{"alias":"\/resources\/documentation\/mx2502-accessories-installation-guide","pid":"125526","langcode":"en"},"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"],"archive_resource":"0","brand":"HOBO","documentation_files":{"English":"https:\/\/dev-d9.onsetcomp.com\/sites\/default\/files\/2026-07\/30032-A%20INSTALL-MX2502-ACC.pdf"},"documentation_hoboconnect":"0","documentation_intemp_app":"0","documentation_is_datasheet":"0","environment":["Water"],"hoboconnect_docs_sorting":"0","hobomobile_docs_sorting":"0","intemp_cx_docs_sorting":"0","resource_topic":["Getting Started"],"resource_type":"Documentation"}]]