{"product_id":"9-in-1-air-quality-monitor-co2-tvoc-hcho-co-noise-lcd","title":"9-in-1 Air Quality Monitor – CO2, TVOC, HCHO, CO \u0026 Noise","description":"\n\u003ch2\u003eATUOTIN 9-in-1 Air Quality Monitor with LCD Display\u003c\/h2\u003e\n\u003cp\u003eStay fully informed about the air around you with the ATUOTIN 9-in-1 Air Quality Monitor. This compact, multifunctional device simultaneously tracks nine key environmental parameters — CO₂, carbon monoxide (CO), TVOC, AQI, benzene (C6H6), formaldehyde (HCHO), noise levels, temperature, and humidity — all displayed in real time on a bright, backlit LCD screen. Perfect for homes, offices, schools, factories, and workshops.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive 9-Parameter Monitoring:\u003c\/strong\u003e Measures CO₂, CO, TVOC, AQI, C6H6 (benzene), HCHO (formaldehyde), sound levels, temperature, and humidity simultaneously — giving you a complete environmental picture at a glance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise Noise Detection:\u003c\/strong\u003e Advanced acoustic chip technology measures sound from 0–150 dB(A) with ±1 dBA accuracy and 1 dBA display resolution, delivering reliable real-time sound level data.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge Backlit LCD Screen:\u003c\/strong\u003e The easy-to-read display works clearly even in low-light conditions. Designed for stable desktop placement, it keeps your hands free while monitoring your environment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong-Lasting Rechargeable Battery:\u003c\/strong\u003e The built-in 2000 mAh rechargeable battery provides up to 24 hours of continuous operation on a single 3-hour charge. Type-C charging cable included — red light when charging, green when fully charged.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable Design:\u003c\/strong\u003e At just 90 × 70 × 35 mm, this lightweight monitor fits easily on any desk or countertop, making it ideal for use across multiple rooms or locations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCO₂ Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e400–5000 ppm (±50 ±10% ppm), Resolution: 1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCO Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e0–999 ppm, Resolution: 1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eTVOC Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e0–9.999 mg\/m³, Resolution: 0.001 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eAQI Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e0–500 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eHCHO (Formaldehyde) Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e0–1.999 mg\/m³, Resolution: 0.001 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eC6H6 (Benzene) Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e0–1.999 mg\/m³, Resolution: 0.001 mg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eNoise Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e0–150 dB(A), Accuracy: ±1 dBA, Resolution: 1 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e0–50°C, Accuracy: ±2°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eHumidity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e0–95% RH, Accuracy: ±8% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e2000 mAh, ~24-hour runtime, ~3-hour charge time\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCharging Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eType-C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCasing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eApprox. 90 × 70 × 35 mm (3.54 × 2.76 × 1.38 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower On\/Off:\u003c\/strong\u003e Press and hold the power button. (Readings begin 60 seconds after power-on.)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Temperature Units:\u003c\/strong\u003e Press the power button once briefly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eToggle Sound On\/Off:\u003c\/strong\u003e Press the power button twice briefly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManual TVOC Calibration:\u003c\/strong\u003e Press the power button three times briefly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurn Off Screen (device stays on):\u003c\/strong\u003e Press the power button four times briefly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 9-in-1 Air Quality Monitor\u003c\/li\u003e\n  \u003cli\u003e1 × USB Type-C Charging Cable\u003c\/li\u003e\n  \u003cli\u003e1 × Instruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLearn More About Indoor Air Quality\u003c\/h3\u003e\n\u003cp\u003eFor guidance on indoor air pollutants and recommended exposure limits, visit the \u003ca href=\"https:\/\/www.epa.gov\/indoor-air-quality-iaq\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEPA's Indoor Air Quality resource center\u003c\/a\u003e. You can also find information on carbon monoxide safety from the CDC's carbon monoxide resources.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.85em; color:#555;\"\u003e\u003cem\u003eNote: Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the images. Please allow 1–2 cm variance in measurements due to manual measuring.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What gases and parameters does this 9-in-1 air quality monitor detect?\u003c\/h4\u003e\n\u003cp\u003eA: This air quality monitor detects nine parameters simultaneously: CO₂ (carbon dioxide), CO (carbon monoxide), TVOC (total volatile organic compounds), AQI (air quality index), C6H6 (benzene), HCHO (formaldehyde), noise\/sound levels, ambient temperature, and relative humidity — all displayed in real time on the LCD screen.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long does the battery last and how is it charged?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in 2000 mAh rechargeable battery provides up to 24 hours of continuous use on a full charge. Charging takes approximately 3 hours via the included Type-C USB cable. The indicator light turns red during charging and green when fully charged.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this air quality monitor suitable for home and office use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Its compact size (90 × 70 × 35 mm) and desktop-friendly design make it ideal for bedrooms, living rooms, offices, classrooms, workshops, and factories. It provides instant awareness of environmental conditions so you can take action to improve ventilation or air quality as needed.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How accurate is the CO₂ measurement?\u003c\/h4\u003e\n\u003cp\u003eA: The CO₂ sensor measures from 400–5000 ppm with an accuracy of ±50 ±10% ppm and a resolution of 1 ppm, offering reliable readings for everyday indoor monitoring. For best accuracy, allow the device to run for at least 60 seconds after powering on before taking readings.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What gases and parameters does this 9-in-1 air quality monitor detect?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This air quality monitor detects nine parameters simultaneously: CO₂ (carbon dioxide), CO (carbon monoxide), TVOC (total volatile organic compounds), AQI (air quality index), C6H6 (benzene), HCHO (formaldehyde), noise\/sound levels, ambient temperature, and relative humidity — all displayed in real time on the LCD screen.\"}}, {\"@type\": \"Question\", \"name\": \"How long does the battery last and how is it charged?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The built-in 2000 mAh rechargeable battery provides up to 24 hours of continuous use on a full charge. 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