{"product_id":"desktop-co2-monitor-and-alarm","title":"Desktop CO2 Monitor and Alarm","description":"\u003ch1\u003eThe Desktop CO2 Monitor precisely measures carbon dioxide levels, temperature, and relative humidity in real time.\u003c\/h1\u003e\n\u003cp data-start=\"103\" data-end=\"608\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cb\u003eNote: All Tongdy monitors and controls ship direct from the factory. Please allow 10-15 business days for shipping and handling.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIts 3-color backlight LCD clearly indicates three CO2 concentration ranges, while the buzzer alarm alerts to critical thresholds. Users can view 24-hour averages and maximum CO2 values for detailed environmental insights. Designed for flexibility, it includes optional on\/off output for ventilation control and supports Modbus RS485 communication. Powered by 24VAC\/VDC, 100–240VAC, or a DC adapter, this monitor integrates seamlessly into diverse monitoring setups for expert environmental management. The unit includes a handheld remote controller for parameter setup and additional functionality.\u003c\/p\u003e\n\u003cdiv data-node=\"6361da511b2cb\" class=\"fl-col fl-node-6361da511b2cb fl-col-small\"\u003e\n\u003cdiv class=\"fl-col-content fl-node-content\"\u003e\n\u003cdiv data-animation-delay=\"0.0\" data-node=\"6361da4abf844\" class=\"fl-module fl-module-rich-text fl-node-6361da4abf844 pd_txt\"\u003e\n\u003cdiv class=\"fl-module-content fl-node-content\"\u003e\n\u003cdiv class=\"fl-rich-text\"\u003e\n\u003cul\u003e\n\u003cli\u003eReal time monitoring room carbon dioxide\u003c\/li\u003e\n\u003cli\u003eNDIR infrared CO2 sensor inside with self calibration\u003c\/li\u003e\n\u003cli\u003eAccurate and reliable CO2 measurement\u003c\/li\u003e\n\u003cli\u003eMore than 10 years lifetime of CO2 sensor\u003c\/li\u003e\n\u003cli\u003eTemperature and humidity monitoring\u003c\/li\u003e\n\u003cli\u003eThree-color (Green\/Yellow\/Red) LCD backlight indicates ventilation level -  optimal\/moderate\/poor based on the CO2 measurements\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eBuzzer alarm available\/disable selected\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eOptional display 24h average and max. CO2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eProvide optional 1x relay output to control a ventilator\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eProvide optional Modbus RS485 communication\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eTouch button for easy operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e24VAC\/VDC or 100~240V or USB 5V power supply\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eIncludes handheld remote for parameter setup and additional functionality\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cdiv class=\"fl-row fl-row-full-width fl-row-bg-none fl-node-619f313bc33f3\" data-node=\"619f313bc33f3\"\u003e\n\u003cdiv class=\"fl-row-content-wrap\"\u003e\n\u003cdiv class=\"fl-row-content fl-row-full-width fl-node-content\"\u003e\n\u003cdiv class=\"fl-col-group fl-node-619f313bc3751\" data-node=\"619f313bc3751\"\u003e\n\u003cdiv class=\"fl-col fl-node-619f313bc378f fl-col-has-cols\" data-node=\"619f313bc378f\"\u003e\n\u003cdiv class=\"fl-col-content fl-node-content\"\u003e\n\u003cdiv class=\"fl-module fl-module-rich-text fl-node-6361e35267907\" data-node=\"6361e35267907\" data-animation-delay=\"0.0\"\u003e\n\u003cdiv class=\"fl-module-content fl-node-content\"\u003e\n\u003cdiv class=\"fl-rich-text\"\u003e\n\u003cdiv class=\"table_wrap\"\u003e\n\u003ctable border=\"1\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003ePower supply\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e100~240VAC or 24VAC\/VDC wire connecting USB 5V (\u0026gt;1A for USB adaptor) 24V with an adaptor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eConsumption\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e3.5 W max. ; 2.5 W avg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eGas detected\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eCarbon Dioxide (CO2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eSensing element\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eNon-Dispersive Infrared Detector (NDIR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eAccuracy@25℃(77℉)\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e±50ppm + 3% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eStability\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e\u0026lt;2% of FS over life of sensor (15 yr typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eCalibration interval\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eABC Logic Self Calibration Algorithm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eCO2 sensor life\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e15 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eResponse Time\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e\u0026lt;2 minutes for 90% step change\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eSignal update\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eEvery 2 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eWarm up time\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e\u0026lt;3 minutes (operation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eCO2 Measuring range\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e0～5,000ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eCO2 Display resolution\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e1ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003e3-color backlight for CO2 range\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eGreen : \u0026lt;1000ppm Yellow: 1001~1400ppm Red: \u0026gt;1400ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eLCD Display\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eReal time CO2, Temp \u0026amp;RH Extra 24h average\/max\/min CO2 (optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eTemperature measuring range\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e-20～60℃(-4～140℉)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eHumidity measuring range\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e0～99%RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eRelay output (optional)\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eOne relay output with rated switching current: 3A, resistance load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eOperation conditions\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e-20~60℃(32~122℉); 0~95%RH, non condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eStorage conditions\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e0~50℃(14~140℉), 5~70%RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eDimensions\/ Weight\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003e130mm(H)×85mm(W)×36.5mm(D) \/ 200g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eHousing and IP class\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003ePC\/ABS fireproof plastic material, protection class: IP30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eInstallation\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eWall mounting (65mm×65mm or 2”×4”wire box) Desktop placement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"30.0800%\"\u003eStandard\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"69.9200%\"\u003eCE-Approval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850001E-i.pdf?v=1651255080\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/G01-CO2-B3_Monitor_datasheet-2402.pdf\" title=\"Desktop CO2 Monitor and Alarm Datasheet\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850001E-i.pdf?v=1651255080\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/G01-CO2-B3_Monitor_datasheet-2402.pdf\" title=\"Desktop CO2 Monitor and Alarm Datasheet\" rel=\"noopener\" target=\"_blank\"\u003eDesktop CO2 Monitor and Alarm Datasheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tongdy","offers":[{"title":"Default Title","offer_id":51823698411704,"sku":"G01-CO2-B332C","price":384.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0532\/3735\/0584\/files\/TD-G01-CO2-B332C_2.jpg?v=1758921353","url":"https:\/\/sperscientific.com\/products\/desktop-co2-monitor-and-alarm","provider":"Sper Scientific Instruments","version":"1.0","type":"link"}