{"id":7947,"date":"2023-11-13T16:00:56","date_gmt":"2023-11-13T16:00:56","guid":{"rendered":"https:\/\/chevrierinstruments.com\/produit\/indicateur-de-la-qualite-de-lair-avec-enregistrement-de-donnees\/"},"modified":"2026-05-31T20:26:44","modified_gmt":"2026-05-31T20:26:44","slug":"indicateur-de-la-qualite-de-lair-avec-enregistrement-de-donnees","status":"publish","type":"product","link":"https:\/\/chevrierinstruments.com\/en\/produit\/indicateur-de-la-qualite-de-lair-avec-enregistrement-de-donnees\/","title":{"rendered":"Data Logging Indoor Air Quality Meter"},"content":{"rendered":"<ul>\n<li>Triple LCD display simultaneously monitors carbon dioxide (CO<sub>2<\/sub>), temperature and relative humidity<\/li>\n<li>Calculates time-weighted average (TWA) and short-term exposure limit (STEL)<\/li>\n<li>Low-drift NDIR CO<sub>2<\/sub>\u00a0sensor for stable and accurate readings<\/li>\n<li>Temperature and relative humidity measurements help determine thermal comfort<\/li>\n<li>Easy-to-read backlit LCD display<\/li>\n<li>User adjustable audible alarm<\/li>\n<li>Data hold, Max\/Min and Average functions<\/li>\n<li>Record up to 32,000 datapoints and keep track with internal time and date stamp<\/li>\n<li>User selectable sampling rate from 1 to 60 mins<\/li>\n<li>Low battery indicator and auto shut-off<\/li>\n<\/ul>\n<h4>Specifications<\/h4>\n<table class=\"table table-striped\">\n<tbody>\n<tr>\n<td colspan=\"2\"><strong>Temperature<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Measuring Range<\/td>\n<td>-4 to 140\u00b0F (-20 to 60\u00b0C)<\/td>\n<\/tr>\n<tr>\n<td>Accuracy<\/td>\n<td>\u00b11.5\u00b0F (\u00b10.8\u00b0C)<\/td>\n<\/tr>\n<tr>\n<td>Resolution<\/td>\n<td>0.1\u00b0F\/\u00b0C<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><strong>Humidity<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Measuring Range<\/td>\n<td>0 to 100% RH<\/td>\n<\/tr>\n<tr>\n<td>Accuracy<\/td>\n<td>10 to 90% RH: \u00b13%<br \/>\n&lt;10% &amp; &gt;90% RH: \u00b15%<\/td>\n<\/tr>\n<tr>\n<td>Resolution<\/td>\n<td>0.1% RH<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><strong>CO<sub>2<\/sub>\u00a0(Carbon Dioxide)<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Sensor Type<\/td>\n<td>Nondispersive Infrared (NDIR)<\/td>\n<\/tr>\n<tr>\n<td>Measuring Range<\/td>\n<td>0 to 30,000ppm<\/td>\n<\/tr>\n<tr>\n<td>Accuracy<\/td>\n<td>0 to 5000ppm: \u00b1(75ppm +3% rdg.)<br \/>\n5001 to 30,000ppm: \u00b1(150ppm +5% rdg.)<\/td>\n<\/tr>\n<tr>\n<td>Resolution<\/td>\n<td>1ppm<\/td>\n<\/tr>\n<tr>\n<td>Warm-up Time<\/td>\n<td>20s<\/td>\n<\/tr>\n<tr>\n<td>Sampling Rate<\/td>\n<td>2s<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><strong>General Specifications<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Display<\/td>\n<td>LCD<\/td>\n<\/tr>\n<tr>\n<td>Backlit Display<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Data Hold<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Min, Max, Avg Functions<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CO<sub>2<\/sub>\u00a0Short Term Exposure Limit (STEL)<\/td>\n<td>Yes (15 mins)<\/td>\n<\/tr>\n<tr>\n<td>CO<sub>2<\/sub>\u00a0Time Weighted Average (TWA)<\/td>\n<td>Yes (8 hours)<\/td>\n<\/tr>\n<tr>\n<td>Datalogging Capabilities<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Real-Time Clock and Date Stamp<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Selectable Sampling Rate<\/td>\n<td>Yes (between 1s and 60m59s)<\/td>\n<\/tr>\n<tr>\n<td>Internal Memory<\/td>\n<td>Yes (32,000 datapoints)<\/td>\n<\/tr>\n<tr>\n<td>Alarms<\/td>\n<td>Yes (Low and High)<\/td>\n<\/tr>\n<tr>\n<td>Auto Shut-off<\/td>\n<td>Yes (adjustable)<\/td>\n<\/tr>\n<tr>\n<td>Kick Stand<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Low Battery Indicator<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Power Supply<\/td>\n<td>9V battery<\/td>\n<\/tr>\n<tr>\n<td>Battery Life<\/td>\n<td>Approx. 10 hours (continuous use)<\/td>\n<\/tr>\n<tr>\n<td>PC Connectivity<\/td>\n<td>USB<\/td>\n<\/tr>\n<tr>\n<td>Software OS Compatibility<\/td>\n<td>Windows 7 \/ 8 \/ 10 \/ 11<\/td>\n<\/tr>\n<tr>\n<td>Product Certifications<\/td>\n<td>CE<\/td>\n<\/tr>\n<tr>\n<td>Operating Temperature<\/td>\n<td>32 to 122\u00b0F (0 to 50\u00b0C)<\/td>\n<\/tr>\n<tr>\n<td>Storage Temperature<\/td>\n<td>-4 to 140\u00b0F (-20 to 60\u00b0C)<\/td>\n<\/tr>\n<tr>\n<td>Operating Humidity Range<\/td>\n<td>0 to 90%<\/td>\n<\/tr>\n<tr>\n<td>Storage Humidity Range<\/td>\n<td>10 to 75%<\/td>\n<\/tr>\n<tr>\n<td>Maximum Operating Altitude<\/td>\n<td>6561' (2000m)<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>11.2 x 2.6 x 1.5\" (284 x 65 x 39mm)<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>10.7oz (304g)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>What's included<\/h4>\n<ul>\n<li>Indoor Air Quality Meter<\/li>\n<li>USB Cable<\/li>\n<li>Hard Carrying Case<\/li>\n<li>Batteries<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<h2>R9905<\/h2>\n<p>This data logging Indoor Air Quality (IAQ) Meter has the ability to record samples on internal memory and keep track of registered readings with a time and date stamp. The R9905 features a Nondispersive Infrared (NDIR) CO<sub>2<\/sub>\u00a0sensor for stable, accurate readings and the option to track live measurements via software.<\/p>\n","protected":false},"featured_media":7933,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[1260,1258,1730,2279,436,705,338,465,56],"product_tag":[860,539,475,609],"class_list":{"0":"post-7947","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-co2-en","7":"product_cat-gas","8":"product_cat-indoor-air-quality-en","9":"product_cat-portables-en-2","10":"product_cat-gas-and-combustion-analysers","11":"product_cat-air-velocity-test-instruments","12":"product_cat-indoor-air-quality","13":"product_cat-humidity","14":"product_cat-temperature-en","15":"product_tag-co2-monitor","16":"product_tag-humidity","17":"product_tag-indoor","18":"product_tag-temperature-en","20":"first","21":"instock","22":"shipping-taxable","23":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Data Logging Indoor Air Quality Meter - Chevrier Instruments inc.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/chevrierinstruments.com\/en\/produit\/indicateur-de-la-qualite-de-lair-avec-enregistrement-de-donnees\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Data Logging Indoor Air Quality Meter - Chevrier Instruments inc.\" \/>\n<meta property=\"og:description\" content=\"R9905 This data logging Indoor Air Quality (IAQ) Meter has the ability to record samples on internal memory and keep track of registered readings with a time and date stamp. 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