{"id":29,"date":"2021-06-29T21:25:17","date_gmt":"2021-06-29T19:25:17","guid":{"rendered":"https:\/\/bcmeter.org\/home\/"},"modified":"2026-03-24T21:55:32","modified_gmt":"2026-03-24T20:55:32","slug":"home","status":"publish","type":"page","link":"https:\/\/bcmeter.org\/de\/","title":{"rendered":"Start"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div data-vc-full-width=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1600000000000 vc_row-has-fill\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h1 style=\"font-size: 3em; margin-bottom: 20px;\"><b>Closing the Data Gap on Black Carbon.<\/b><\/h1>\n<p style=\"font-size: 1.15em; line-height: 1.7; color: #444;\">An open-source black carbon monitor for research institutions, environmental agencies, and NGOs. Validated against professional instruments \u2014 at a fraction of the cost.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_row wpb_row vc_inner vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_btn3-container vc_btn3-inline vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-lg vc_btn3-shape-rounded vc_btn3-style-flat vc_btn3-color-primary\" href=\"#specs\" title=\"\">Specifications<\/a><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_btn3-container vc_btn3-inline vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-lg vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-color-primary\" href=\"\/order\/\" title=\"\">Research Inquiry<\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center wpb_content_element\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper vc_box_shadow_border  vc_box_border_grey\"><img loading=\"lazy\" decoding=\"async\" width=\"1661\" height=\"1413\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"\" title=\"bcmeter_interface_screenshot\" srcset=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1.jpg 1661w, https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1-300x255.jpg 300w, https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1-1024x871.jpg 1024w, https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1-768x653.jpg 768w, https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1-1536x1307.jpg 1536w\" sizes=\"auto, (max-width: 1661px) 100vw, 1661px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 50px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: center;\">Why Measure Black Carbon?<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_row wpb_row vc_inner vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>Black carbon (soot) poses serious health risks and contributes significantly to global warming (IPCC 20-year CO\u2082 equivalent factor of 2421). Yet, measurement sites remain scarce due to high costs.<\/p>\n<p>bcMeter changes this \u2014 as a cost-effective, open-source platform for a global measurement network.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div><div class=\"vc_separator wpb_content_element vc_separator_align_center vc_sep_width_100 vc_sep_pos_align_center vc_separator_no_text wpb_content_element  wpb_content_element\" ><span class=\"vc_sep_holder vc_sep_holder_l\"><span style=\"border-color:#e0e0e0;\" class=\"vc_sep_line\"><\/span><\/span><span class=\"vc_sep_holder vc_sep_holder_r\"><span style=\"border-color:#e0e0e0;\" class=\"vc_sep_line\"><\/span><\/span>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div id=\"specs\" class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 20px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_row wpb_row vc_inner vc_row-fluid vc_column-gap-20\"><div class=\"wpb_column vc_column_container vc_col-sm-4 vc_col-has-fill\"><div class=\"vc_column-inner vc_custom_1600000000001\"><div class=\"wpb_wrapper\"><div class=\"vc_icon_element vc_icon_element-outer vc_do_icon vc_icon_element-align-center\"><div class=\"vc_icon_element-inner vc_icon_element-color-sky vc_icon_element-size-lg vc_icon_element-style- vc_icon_element-background-color-grey\" ><span class=\"vc_icon_element-icon fas fa-chart-line\" ><\/span><\/div><\/div><h3 style=\"text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" >Real-Time Dashboard<\/h3>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong>Browser-Based Interface<\/strong><\/p>\n<p>Monitor measurements live from any device on your network \u2014 no cloud account, no subscription.<\/p>\n<ul>\n<li>Live BC, PM2.5, temperature, humidity<\/li>\n<li>Interactive charts with zoom and dual axes<\/li>\n<li>Export to CSV, SVG, or PNG<\/li>\n<li>3-step setup wizard<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_btn3-container vc_btn3-center vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-color-sky\" href=\"\/demo\/\" title=\"\" target=\"_blank\">Try the Demo<\/a><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4 vc_col-has-fill\"><div class=\"vc_column-inner vc_custom_1600000000002\"><div class=\"wpb_wrapper\"><div class=\"vc_icon_element vc_icon_element-outer vc_do_icon vc_icon_element-align-center\"><div class=\"vc_icon_element-inner vc_icon_element-color-blue vc_icon_element-size-lg vc_icon_element-style- vc_icon_element-background-color-grey\" ><span class=\"vc_icon_element-icon fas fa-flask\" ><\/span><\/div><\/div><h3 style=\"text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" >Tested &amp; Validated<\/h3>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>\n<strong>Lab-Validated Performance<\/strong><\/p>\n<p>Validated against professional-grade black carbon monitors by independent labs, universities, and environmental agencies.<\/p>\n<ul>\n<li>Compared to MAAP, AE33, microAeth<\/li>\n<li>R\u00b2 = 0.77\u20130.83 against reference instruments<\/li>\n<li>Published in peer-reviewed journals<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_btn3-container vc_btn3-center vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-flat vc_btn3-color-blue\" href=\"#evaluation\" title=\"\">View Results<\/a><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4 vc_col-has-fill\"><div class=\"vc_column-inner vc_custom_1600000000003\"><div class=\"wpb_wrapper\"><div class=\"vc_icon_element vc_icon_element-outer vc_do_icon vc_icon_element-align-center\"><div class=\"vc_icon_element-inner vc_icon_element-color-grey vc_icon_element-size-lg vc_icon_element-style- vc_icon_element-background-color-grey\" ><span class=\"vc_icon_element-icon fas fa-broadcast-tower\" ><\/span><\/div><\/div><h3 style=\"text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" >Connectivity &amp; IoT<\/h3>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong>Field-Ready Deployment<\/strong><\/p>\n<p>Deploy anywhere \u2014 from urban monitoring stations to remote field sites.<\/p>\n<ul>\n<li>WiFi with local web interface<\/li>\n<li>Optional 4G\/LTE for remote sites<\/li>\n<li>Optional GPS for mobile sampling<\/li>\n<li>Optional PM2.5\/PM10 sensor<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_btn3-container vc_btn3-center vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-color-grey\" href=\"\/order\/\" title=\"\">Research Inquiry<\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div data-vc-full-width=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1764195530855 vc_row-has-fill\"><div class=\"wpb_column vc_column_container vc_col-sm-8 vc_col-has-fill\"><div class=\"vc_column-inner vc_custom_1764195640846\"><div class=\"wpb_wrapper\"><h3 style=\"color: #000000;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >Open Source \u2013 CC BY-NC 4.0<\/h3>\n\t<div class=\"wpb_text_column wpb_content_element vc_custom_1764195666206\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>All design files, firmware, and schematics are freely available for <b>private, educational, and research use<\/b>. Build your own or contribute to the project.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_btn3-container vc_btn3-left vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-icon-left vc_btn3-color-primary\" href=\"https:\/\/github.com\/dahljo\/bcmeter\" title=\"\" target=\"_blank\"><i class=\"vc_btn3-icon fab fa-github\"><\/i> Source Code (Github)<\/a><\/div><div class=\"vc_btn3-container vc_btn3-left vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-icon-left vc_btn3-color-orange\" href=\"\/wiki\" title=\"\" target=\"_blank\"><i class=\"vc_btn3-icon fas fa-wrench\"><\/i> Assembly Wiki<\/a><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div id=\"evaluation\" class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 60px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: center;\">Performance Validation<\/h2>\n<p style=\"text-align: center;\">Co-location measurements against established professional black carbon monitors.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_tta-container\" data-vc-action=\"collapse\"><div class=\"vc_general vc_tta vc_tta-tabs vc_tta-color-blue vc_tta-style-modern vc_tta-shape-square vc_tta-spacing-1 vc_tta-has-pagination vc_tta-tabs-position-top vc_tta-controls-align-left\"><div class=\"vc_tta-tabs-container\"><ul class=\"vc_tta-tabs-list\"><li class=\"vc_tta-tab vc_active\" data-vc-tab><a href=\"#1600000000006-3\" data-vc-tabs data-vc-container=\".vc_tta\"><span class=\"vc_tta-title-text\">bcMeter vs MAAP (Leipzig)<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab><a href=\"#1600000000004-1\" data-vc-tabs data-vc-container=\".vc_tta\"><span class=\"vc_tta-title-text\">bcMeter vs AE33 (Berlin)<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab><a href=\"#1700000000001-1\" data-vc-tabs data-vc-container=\".vc_tta\"><span class=\"vc_tta-title-text\">bcMeter vs AE33 (RIFS Potsdam)<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab><a href=\"#1600000000005-2\" data-vc-tabs data-vc-container=\".vc_tta\"><span class=\"vc_tta-title-text\">bcMeter vs mAeth 51 (Berlin)<\/span><\/a><\/li><\/ul><\/div><div class=\"vc_tta-panels-container\"><div class=\"vc_tta-panels\"><div class=\"vc_tta-panel vc_active\" id=\"1600000000006-3\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1600000000006-3\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">bcMeter vs MAAP (Leipzig)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" style=\"width: 100%;\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/03\/MAAP_Leipzig_12-16Aug.png\" \/><br \/>\n<small>114h continuous co-location, Leipzig, Aug 2021. +20 min time offset correction applied to bcMeter (determined via cross-correlation). Hourly averages.<\/small><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1600000000004-1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1600000000004-1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">bcMeter vs AE33 (Berlin)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" style=\"width: 100%;\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/03\/AE33_Berlin_Session1.png\" \/><br \/>\n<small>30h co-location with AE33 (MC174 station, BLUME network), Berlin, Jun 2021. No correction factor applied. Hourly averages.<\/small><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1700000000001-1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1700000000001-1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">bcMeter vs AE33 (RIFS Potsdam)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" style=\"width: 100%;\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/03\/RIFS_combined.png\" \/><br \/>\n<small>Co-location at RIFS Potsdam, 13 Nov 2024 (bcMeter112 revision). OLS correction applied: BC_corr = 1.016 x BC_raw + 411 ng\/m3. Required due to hardware revision with different baseline offset. 30-minute averages.<\/small><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1600000000005-2\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1600000000005-2\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">bcMeter vs mAeth 51 (Berlin)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" style=\"width: 100%;\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/03\/AE51_vs_bcMeter_Mar2026.png\" \/><br \/>\n<small>35h co-location with microAeth AE51, Berlin, Mar 2026. No correction factor applied. One AE51 outlier removed (instrument artifact). Hourly averages.<\/small><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><ul class=\"vc_general vc_pagination vc_pagination-style-flat vc_pagination-shape-square vc_pagination-color-grey\"><li class=\"vc_pagination-item vc_active\" data-vc-tab><a href=\"#1600000000006-3\" class=\"vc_pagination-trigger\" data-vc-tabs data-vc-container=\".vc_tta\"><\/a><\/li><li class=\"vc_pagination-item\" data-vc-tab><a href=\"#1600000000004-1\" class=\"vc_pagination-trigger\" data-vc-tabs data-vc-container=\".vc_tta\"><\/a><\/li><li class=\"vc_pagination-item\" data-vc-tab><a href=\"#1700000000001-1\" class=\"vc_pagination-trigger\" data-vc-tabs data-vc-container=\".vc_tta\"><\/a><\/li><li class=\"vc_pagination-item\" data-vc-tab><a href=\"#1600000000005-2\" class=\"vc_pagination-trigger\" data-vc-tabs data-vc-container=\".vc_tta\"><\/a><\/li><\/ul><\/div><\/div><\/div><div class=\"vc_empty_space\"   style=\"height: 30px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"margin-bottom: 10px; text-align: center;\">Independent Research &amp; Validation<\/h2>\n<p>&nbsp;<\/p>\n<p>Hofman, J. et al. (2024): <em>Portable Sensors for Dynamic Exposure Assessments in Urban Environments.<\/em> Sensors, 24(17), 5653. Benchmarking by <strong>VITO<\/strong> and <strong>VMM<\/strong> &#8212; strong BC measurement performance (R\u00b2 = 0.82-0.83). <a href=\"https:\/\/www.mdpi.com\/1424-8220\/24\/17\/5653\" target=\"_blank\" rel=\"noopener\">Read the full paper<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Doldi, A. et al. (2025): <em>Evaluating the performance of the low-cost black carbon sensor bcMeter.<\/em> Gefahrstoffe &#8212; Reinhaltung der Luft, 85(1-2). Independent evaluation by University of Milano-Bicocca (R\u00b2 = 0.77-0.79). <a href=\"https:\/\/boa.unimib.it\/handle\/10281\/566341\" target=\"_blank\" rel=\"noopener\">View publication<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Konrat, F. (2025): <em>Evaluating the performance of low-cost BC sensors for air pollution measurements.<\/em> Master Thesis, University of Potsdam \/ RIFS. 32-day collocation study &#8212; accuracy comparable to established low-cost BC sensors, newer revision outperformed microAeth AE51.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div data-vc-full-width=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1600000000007 vc_row-has-fill\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" id=\"download\">Downloads &amp; Getting Started<\/h2><div class=\"vc_empty_space\"   style=\"height: 30px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_row wpb_row vc_inner vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h4 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >1. Download Image<\/h4>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>\nGet the preconfigured SD-Card image here.<\/p>\n\n\n<span id=\"eeSFL_FileListTop\"><!-- Simple File List - File List Top --><\/span>\n\n<div class=\"eeSFL\" id=\"eeSFL\">\n<script>\n\tvar eeSFL_PluginURL = \"https:\/\/bcmeter.org\/wp-content\/plugins\/simple-file-list\/\";\n\tvar eeSFL_FileListDir = \"wp-content\/uploads\/simple-file-list\/\";\n\tvar eeSFL_ShowListStyle = \"TABLE\";\n<\/script>\n<table class=\"eeFiles\"><thead><tr><th class=\"eeSFL_Thumbnail\">Thumb<\/th><th class=\"eeSFL_FileName\">Name<\/th><th class=\"eeSFL_FileSize\">Size<\/th><th class=\"eeSFL_FileDate\">Date<\/th><\/tr>\n\n\t<\/thead>\n\n<tbody>\n\n\t\t<tr class=\"eeSFL_Item\" id=\"eeSFL_FileID-1\"><td class=\"eeSFL_Thumbnail\"><a href=\"https:\/\/bcmeter.org\/wp-content\/uploads\/simple-file-list\/bcMeter_latest_img.zip\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/bcmeter.org\/wp-content\/plugins\/simple-file-list\/images\/thumbnails\/zip.svg\" width=\"64\" height=\"64\" alt=\"Thumb\" \/><\/a><\/td><td class=\"eeSFL_FileName\">\n\n\t\t\t<span class=\"eeSFL_RealFileName eeHide\">bcMeter_latest_img.zip<\/span>\n\t\t\t<span class=\"eeSFL_FileNiceName eeHide\">bcMeter_latest.img.zip<\/span>\n\t\t\t<span class=\"eeSFL_FileMimeType eeHide\">application\/zip<\/span>\n\n\t\t\t<p class=\"eeSFL_FileLink\"><a class=\"eeSFL_FileName\" href=\"https:\/\/bcmeter.org\/wp-content\/uploads\/simple-file-list\/bcMeter_latest_img.zip\" target=\"_blank\">bcMeter_latest.img.zip<\/a><\/p><p class=\"eeSFL_FileDesc \"><\/p>\n\n\t\t<small class=\"eeSFL_ListFileActions\">\n\t\t\t<a class=\"eeSFL_FileDownload\" href=\"https:\/\/bcmeter.org\/wp-content\/uploads\/simple-file-list\/bcMeter_latest_img.zip\" download=\"bcMeter_latest_img.zip\">Download<\/a>\n\t\t\t<a class=\"eeSFL_CopyLinkToClipboard\" onclick=\"eeSFL_CopyLinkToClipboard('https:\/\/bcmeter.org\/wp-content\/uploads\/simple-file-list\/bcMeter_latest_img.zip')\" href=\"#\">Link kopieren<\/a>\n\n\t\t<\/small>\n\n\t\t<span class=\"eeHide eeSFL_FileSize\">970.05 MB<\/span>\n\t\t<span class=\"eeHide eeSFL_FileDateAdded\">3. Februar 2026<\/span>\n\t\t<span class=\"eeHide eeSFL_FileDateChanged\"><\/span><\/td><td class=\"eeSFL_FileSize\">970.05 MB<\/td><td class=\"eeSFL_FileDate\">3. Februar 2026<\/td><\/tr>\n\n<\/tbody>\n\n<\/table>\n\n<p class=\"eeHide\"><span id=\"eeSFL_FilesCount\">1<\/span><\/p>\n\n<\/div><!-- END .eeSFL -->\n<p><em>If no file is listed, the image is currently being updated.<\/em><\/p>\n<p><a href=\"https:\/\/github.com\/dahljo\/bcmeter\" target=\"_blank\" rel=\"noopener\"><strong>View Github Repository<\/strong><\/a> | <a href=\"\/wiki\" target=\"_blank\" rel=\"noopener\"><strong>View Wiki<\/strong><\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h4 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >2. Installation Steps<\/h4>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<ol>\n<li><strong>Flash:<\/strong> Unzip file and use <b>Balena Etcher<\/b> to write <code>.img<\/code> to microSD.<\/li>\n<li><strong>Boot:<\/strong> Insert card, wait 2-3 mins. Device creates WiFi.<\/li>\n<li><strong>Connect:<\/strong> Join WiFi <code>bcMeter<\/code> (Pass: <code>bcMeterbcMeter<\/code>).<\/li>\n<li><strong>Setup:<\/strong> Go to <code>http:\/\/bcmeter.local<\/code>.<\/li>\n<li><strong>Important:<\/strong> Trigger an <strong>update<\/strong> immediately after login to expand storage!<\/li>\n<\/ol>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div data-vc-full-width=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1766410288945 vc_row-has-fill\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"color: #ffffff;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >Development Log<\/h2>\n\t<div class=\"wpb_text_column wpb_content_element vc_custom_1766410311469\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong style=\"color: #fff;\">March 2026<\/strong><br \/>\nSo the road to multiwavelength is long and rocky but there&#8217;s progress &#8211; there were many factors which forced me to do a complete redesign of hard- and software: bcMeter moved from Raspberry Pi to ESP32. This resolves CE\/RED compliance and connectivity issues that limited the Pi version. Boots in seconds, OTA updates in under a minute. A more comprehensive update on that will follow.<\/p>\n<hr style=\"border-color: #555;\" \/>\n<p><strong style=\"color: #fff;\">December 2025<\/strong><br \/>\nNumerous software bugs fixed in frontend and backend. Recommended: download the new image and do a fresh installation after backing up logs.<\/p>\n<p>Multi-wavelength bcMeter release rescheduled \u2014 development focuses on 2-3 wavelengths for source apportionment with a new ADC over SPI (8 channels).<\/p>\n<hr style=\"border-color: #555;\" \/>\n<p><strong style=\"color: #fff;\">October 2024<\/strong><br \/>\nbcMeter was part of the VMM CompAIR project which has now concluded.<\/p>\n<hr style=\"border-color: #555;\" \/>\n<p><strong style=\"color: #fff;\">May 2024<\/strong><br \/>\nNew Board Revision 2024.2 and 3D-printed case released \u2014 major updates in accuracy, usability, and interface.<\/p>\n<hr style=\"border-color: #555;\" \/>\n<p><strong style=\"color: #fff;\">November 2023<\/strong><br \/>\nThe VMM (Flanders Environment Agency) supports further development of bcMeter for improved accuracy and usability.<\/p>\n<hr style=\"border-color: #555;\" \/>\n<p><strong style=\"color: #fff;\">August 2021<\/strong><br \/>\nFirst release of bcMeter. Thanks to DUH (Environmental Action Germany).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div id=\"contact\" class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 40px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: center;\">Contact<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<style id=\"wpforms-css-vars-418\">\n\t\t\t\t#wpforms-418 {\n\t\t\t\t\n\t\t\t}\n\t\t\t<\/style><div class=\"wpforms-container wpforms-container-full wpforms-render-modern\" id=\"wpforms-418\"><form id=\"wpforms-form-418\" class=\"wpforms-validate wpforms-form wpforms-ajax-form\" data-formid=\"418\" method=\"post\" enctype=\"multipart\/form-data\" action=\"\/de\/wp-json\/wp\/v2\/pages\/29\" data-token=\"587a10e4f8a00a0e883008691e9dcaf4\" data-token-time=\"1776525121\"><noscript class=\"wpforms-error-noscript\">Bitte aktiviere JavaScript in deinem Browser, um dieses Formular fertigzustellen.<\/noscript><div id=\"wpforms-error-noscript\" style=\"display: none;\">Bitte aktiviere JavaScript in deinem Browser, um dieses Formular fertigzustellen.<\/div><div class=\"wpforms-field-container\"><div id=\"wpforms-418-field_1-container\" class=\"wpforms-field wpforms-field-name\" data-field-id=\"1\"><fieldset><legend class=\"wpforms-field-label\">Name <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/legend><div class=\"wpforms-field-row wpforms-field-medium\"><div class=\"wpforms-field-row-block wpforms-first wpforms-one-half\"><input type=\"text\" id=\"wpforms-418-field_1\" class=\"wpforms-field-name-first wpforms-field-required\" name=\"wpforms[fields][1][first]\" aria-errormessage=\"wpforms-418-field_1-error\" required><label for=\"wpforms-418-field_1\" class=\"wpforms-field-sublabel after\">Vorname<\/label><\/div><div class=\"wpforms-field-row-block wpforms-one-half\"><input type=\"text\" id=\"wpforms-418-field_1-last\" class=\"wpforms-field-name-last wpforms-field-required\" name=\"wpforms[fields][1][last]\" aria-errormessage=\"wpforms-418-field_1-last-error\" required><label for=\"wpforms-418-field_1-last\" class=\"wpforms-field-sublabel after\">Nachname<\/label><\/div><\/div><\/fieldset><\/div>\t\t<div id=\"wpforms-418-field_4-container\"\n\t\t\tclass=\"wpforms-field wpforms-field-text\"\n\t\t\tdata-field-type=\"text\"\n\t\t\tdata-field-id=\"4\"\n\t\t\t>\n\t\t\t<label class=\"wpforms-field-label\" for=\"wpforms-418-field_4\" >Email or Comment<\/label>\n\t\t\t<input type=\"text\" id=\"wpforms-418-field_4\" class=\"wpforms-field-medium\" name=\"wpforms[fields][4]\" >\n\t\t<\/div>\n\t\t<div id=\"wpforms-418-field_2-container\" class=\"wpforms-field wpforms-field-email\" data-field-id=\"2\"><label class=\"wpforms-field-label\" for=\"wpforms-418-field_2\">Email <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><input type=\"email\" id=\"wpforms-418-field_2\" class=\"wpforms-field-medium wpforms-field-required\" name=\"wpforms[fields][2]\" spellcheck=\"false\" aria-errormessage=\"wpforms-418-field_2-error\" required><\/div><div id=\"wpforms-418-field_3-container\" class=\"wpforms-field wpforms-field-textarea\" data-field-id=\"3\"><label class=\"wpforms-field-label\" for=\"wpforms-418-field_3\">Comment or Message<\/label><textarea id=\"wpforms-418-field_3\" class=\"wpforms-field-medium\" name=\"wpforms[fields][3]\" aria-errormessage=\"wpforms-418-field_3-error\" ><\/textarea><\/div><script>\n\t\t\t\t( function() {\n\t\t\t\t\tconst style = document.createElement( 'style' );\n\t\t\t\t\tstyle.appendChild( document.createTextNode( '#wpforms-418-field_4-container { position: absolute !important; overflow: hidden !important; display: inline !important; height: 1px !important; width: 1px !important; z-index: -1000 !important; padding: 0 !important; } #wpforms-418-field_4-container input { visibility: hidden; } #wpforms-conversational-form-page #wpforms-418-field_4-container label { counter-increment: none; }' ) );\n\t\t\t\t\tdocument.head.appendChild( style );\n\t\t\t\t\tdocument.currentScript?.remove();\n\t\t\t\t} )();\n\t\t\t<\/script><\/div><!-- .wpforms-field-container --><div class=\"wpforms-submit-container\" ><input type=\"hidden\" name=\"wpforms[id]\" value=\"418\"><input type=\"hidden\" name=\"page_title\" value=\"\"><input type=\"hidden\" name=\"page_url\" value=\"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages\/29\"><input type=\"hidden\" name=\"url_referer\" value=\"\"><button type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-418\" class=\"wpforms-submit\" data-alt-text=\"Sending...\" data-submit-text=\"Submit\" aria-live=\"assertive\" value=\"wpforms-submit\">Submit<\/button><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/bcmeter.org\/wp-content\/plugins\/wpforms\/assets\/images\/submit-spin.svg\" class=\"wpforms-submit-spinner\" style=\"display: none;\" width=\"26\" height=\"26\" alt=\"Wird geladen\"><\/div><\/form><\/div>  <!-- .wpforms-container --><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div>\n<div style=\"margin-top: 2em; padding: 1em; border-top: 1px solid #ddd; font-size: 0.85em; color: #666;\"><strong>Trademark Notice:<\/strong> bcMeter is an independent, open-source project, not affiliated with Aerosol d.o.o. or Magee Scientific Corporation. AETHALOMETER\u00ae is a registered trademark of Magee Scientific Corporation. <a href=\"\/disclaimer\/\">Read full disclaimer<\/a>.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Trademark Notice: bcMeter is an independent, open-source project, not affiliated with Aerosol d.o.o. or Magee Scientific Corporation. AETHALOMETER\u00ae is a registered trademark of Magee Scientific Corporation. Read full disclaimer.<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-full.php","meta":{"footnotes":""},"class_list":["post-29","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/comments?post=29"}],"version-history":[{"count":10,"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages\/29\/revisions"}],"predecessor-version":[{"id":584,"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages\/29\/revisions\/584"}],"wp:attachment":[{"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/media?parent=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}