{"product_id":"9","title":"Desktop PM 2.5 Particulate Monitor","description":"\u003ch1\u003eThe Desktop Type PM 2.5 Monitor provides real-time measurement of indoor particulate matter, including PM2.5 and PM10 concentrations, alongside temperature and humidity.\u003c\/h1\u003e\n\u003cp data-end=\"608\" data-start=\"103\"\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 clear LCD shows current values and a one-hour moving average for accurate air quality assessment. The device features six backlight colors aligned with PM2.5 AQI standards, offering an intuitive visual indication of air pollution levels. Equipped with an optional RS485 Modbus RTU interface, it supports integration into building systems. Designed for flexible placement, it can be mounted o\u003c\/p\u003e\n\u003cp\u003eThe Desktop Type PM2.5 Monitor offers precise real-time tracking of indoor air quality by measuring PM2.5 and PM10 particulate matter concentrations, along with temperature and humidity levels. Its clear LCD screen displays both immediate readings and a one-hour moving average, enabling thorough assessment of fluctuating air conditions. The monitor features six backlight colors that correspond to PM2.5 AQI standards, providing an immediate and intuitive visual cue to the severity of particulate pollution. With an optional RS485 interface supporting Modbus RTU protocol, this device can be seamlessly integrated into existing building management systems for centralized monitoring. This makes the monitor an essential tool for continuous, expert-level air quality management in residential, commercial or industrial settings.\u003c\/p\u003e\n\u003cul data-start=\"104\" data-end=\"877\"\u003e\n\u003cli data-start=\"104\" data-end=\"235\"\u003e\n\u003cp data-start=\"106\" data-end=\"235\"\u003e\u003cstrong data-start=\"106\" data-end=\"144\"\u003eComprehensive Air Quality Tracking\u003c\/strong\u003e – Measures PM2.5, PM10, temperature and humidity for a full picture of indoor conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"236\" data-end=\"369\"\u003e\n\u003cp data-start=\"238\" data-end=\"369\"\u003e\u003cstrong data-start=\"238\" data-end=\"269\"\u003eClear, Easy-to-Read Display\u003c\/strong\u003e – LCD screen shows real-time data plus a one-hour moving average to capture trends in air quality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"370\" data-end=\"512\"\u003e\n\u003cp data-start=\"372\" data-end=\"512\"\u003e\u003cstrong data-start=\"372\" data-end=\"397\"\u003eInstant Visual Alerts\u003c\/strong\u003e – Six backlight colors correspond to PM2.5 AQI standards, making pollution levels easy to understand at a glance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"513\" data-end=\"643\"\u003e\n\u003cp data-start=\"515\" data-end=\"643\"\u003e\u003cstrong data-start=\"515\" data-end=\"543\"\u003eSmart System Integration\u003c\/strong\u003e – Optional RS485 Modbus RTU interface allows seamless connection with building management systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"644\" data-end=\"753\"\u003e\n\u003cp data-start=\"646\" data-end=\"753\"\u003e\u003cstrong data-start=\"646\" data-end=\"677\"\u003eVersatile Placement Options\u003c\/strong\u003e – Designed for both desktop use and wall mounting to suit any environment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"754\" data-end=\"877\"\u003e\n\u003cp data-start=\"756\" data-end=\"877\"\u003e\u003cstrong data-start=\"756\" data-end=\"790\"\u003eProfessional-Grade Performance\u003c\/strong\u003e – Delivers reliable, continuous monitoring for homes, offices and industrial spaces.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cdiv class=\"fl-builder-content fl-builder-content-1582 fl-builder-content-primary fl-builder-global-templates-locked\" data-post-id=\"1582\"\u003e\n\u003cdiv class=\"fl-row fl-row-full-width fl-row-bg-none fl-node-619f2e2811911\" data-node=\"619f2e2811911\"\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-619f2e2811dfe\" data-node=\"619f2e2811dfe\"\u003e\n\u003cdiv class=\"fl-col fl-node-619f2e2811e4e fl-col-has-cols\" data-node=\"619f2e2811e4e\"\u003e\n\u003cdiv class=\"fl-col-content fl-node-content\"\u003e\n\u003cdiv class=\"fl-col-group fl-node-619f2e2811e93 fl-col-group-nested\" data-node=\"619f2e2811e93\"\u003e\n\u003cdiv class=\"fl-col fl-node-619f2e2811ed6\" data-node=\"619f2e2811ed6\"\u003e\n\u003cdiv class=\"fl-col-content fl-node-content\"\u003e\n\u003cdiv class=\"fl-module fl-module-rich-text fl-node-619f2e2811f59\" data-node=\"619f2e2811f59\" 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 style=\"width: 100%; height: 961px;\" border=\"1\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 54px;\" valign=\"center\" width=\"200\"\u003ePower supply\u003cb\u003e\u003ci\u003e\u003c\/i\u003e\u003c\/b\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 54px;\" valign=\"center\" width=\"395\"\u003eG03-PM2.5-300\u003cspan\u003eH\u003c\/span\u003e: 5VDC with a power adaptor\n\u003cp\u003eG03-PM2.5-340\u003cspan\u003eH\u003c\/span\u003e: 24VAC\/VDC\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eWork consumption\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e1.2W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 38px;\" valign=\"center\" width=\"200\"\u003eWarm-up time\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 38px;\" valign=\"center\" width=\"395\"\u003e60s (first using or using again after a long-time power off)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eMonitor parameters\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003ePM2.5, air temperature, air relative humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 264px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 264px;\" valign=\"center\" width=\"200\"\u003eLCD display\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 264px;\" valign=\"center\" width=\"395\"\u003e\n\u003cp\u003eLCD six backlit, displays six levels of PM2.5 concentrations and one hour moving average value.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eGreen:   Top Quality- Grade I\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eYellow:   Good Quality-Grade II\u003c\/p\u003e\n\u003cp\u003eOrange:  Mild level pollution -Grade III\u003c\/p\u003e\n\u003cp\u003eRed:     Medium level pollution Grade IV\u003c\/p\u003e\n\u003cp\u003ePurple:   Serious level pollution Grade V\u003c\/p\u003e\n\u003cp\u003eMaroon:  Severe pollution - Grade VI\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 54px;\" valign=\"center\" width=\"200\"\u003eInstallation\u003cb\u003e\u003ci\u003e\u003c\/i\u003e\u003c\/b\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 54px;\" valign=\"center\" width=\"395\"\u003eDesktop-G03-PM2.5-\u003cspan\u003e300H\u003c\/span\u003e\n\u003cp\u003eWall mounting-G03-PM2.5-\u003cspan\u003e340H\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eStorage condition\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e0℃~60℃\/ 5~95%RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e85mm×130mm×36.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eHousing materials\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003ePC+ABS materials\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eNet weight\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e198g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eIP class\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003eIP30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 106.060606%; height: 19px;\" colspan=\"2\" valign=\"center\" width=\"595\"\u003eTemperature and Humidity Parameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 38px;\" valign=\"center\" width=\"200\"\u003eTemperature humidity sensor\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 38px;\" valign=\"center\" width=\"395\"\u003eBuilt-in high precision digital integrated temperature humidity sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eTemperature measuring range\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e-20℃~50℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 38px;\" valign=\"center\" width=\"200\"\u003eRelative humidity measuring range\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 38px;\" valign=\"center\" width=\"395\"\u003e0~100%RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eDisplay resolution\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003eTemperature:0.01℃            Humidity:0.01%RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 38px;\" valign=\"center\" width=\"200\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 38px;\" valign=\"center\" width=\"395\"\u003eTemperature:\u0026lt;±0.5℃@30℃     Humidity:\u0026lt;±3.0%RH （20%~80%RH）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 38px;\" valign=\"center\" width=\"200\"\u003eStability\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 38px;\" valign=\"center\" width=\"395\"\u003eTemperature:\u0026lt;0.04℃ per year   Humidity:\u0026lt;0.5%RH per year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 106.060606%; height: 19px;\" colspan=\"2\" valign=\"center\" width=\"595\"\u003ePM2.5 Parameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eBuilt-in sensor\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003eLaser dust sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eSensor Type\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003eOptical sensing with an IR LED and a photo-sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eMeasuring range\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e0~600μg∕m3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eDisplay resolution\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e0.1μg∕m3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 38px;\" valign=\"center\" width=\"200\"\u003eMeasuring accuracy（1h average）\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 38px;\" valign=\"center\" width=\"395\"\u003e±10µg+10% of reading  @ 20℃~35℃，20%~80%RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eWorking life\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e\u0026gt;5 years (avoid to close lampblack, dust, great light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eStability\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003e\u0026lt;10% measurement decline in five years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 106.060606%; height: 19px;\" colspan=\"2\" valign=\"center\" width=\"595\"\u003eOption\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 35.650624%; height: 19px;\" valign=\"center\" width=\"200\"\u003eRS485 interface\u003c\/td\u003e\n\u003ctd style=\"width: 70.409982%; height: 19px;\" valign=\"center\" width=\"395\"\u003eMODBUS protocol\u003cspan\u003e，\u003c\/span\u003e\u003cspan\u003e384\u003c\/span\u003e00bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\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 rel=\"noopener\" title=\"Desktop PM 2.5 Particulate Monitor Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/G03-PM2.5_IAQ_Monitor_datasheet-2312.pdf\" target=\"_blank\"\u003e\u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\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\/G03-PM2.5_IAQ_Monitor_datasheet-2312.pdf\" title=\"Desktop PM 2.5 Particulate Monitor Datasheet\" rel=\"noopener\" target=\"_blank\"\u003eDesktop PM 2.5 Particulate Monitor 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\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tongdy","offers":[{"title":"Default Title","offer_id":47790019215584,"sku":"G03-PM2.5-300T","price":276.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/desktop-pm-25-particulate-monitor-g03-pm25-300t-4896686.jpg?v=1759403042","url":"https:\/\/sperdirect.com\/en-ca\/products\/9","provider":"Sper Scientific Direct","version":"1.0","type":"link"}