{"product_id":"5-in-1-indoor-air-quality-monitor-co2-tvoc-hcho-temperature-humidity","title":"5-in-1 Indoor Air Quality Monitor – CO2, TVOC, HCHO, Temp \u0026 Humidity","description":"\n\u003ch2\u003eBreathe Easier — Know What's in Your Air\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eShunmaii 5-in-1 Indoor Air Quality Monitor\u003c\/strong\u003e gives you a real-time snapshot of your home or office environment in a single compact device. Simultaneously track \u003cstrong\u003eCO₂ levels, formaldehyde (HCHO), total volatile organic compounds (TVOC), temperature, and humidity\u003c\/strong\u003e — all on a crisp 2.8-inch TFT-LCD display. With color-coded CO₂ alerts and up to 30 hours of battery life per charge, staying on top of your indoor air quality has never been easier.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Indoor Air Quality Matters\u003c\/h3\u003e\n\u003cp\u003ePoor indoor air quality can cause fatigue, headaches, difficulty concentrating, and long-term health issues. Studies from the \u003ca href=\"https:\/\/www.epa.gov\/indoor-air-quality-iaq\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Environmental Protection Agency (EPA) on Indoor Air Quality\u003c\/a\u003e show that indoor air can be 2–5× more polluted than outdoor air. This monitor empowers you to act — open a window, run an air purifier, or identify hidden sources of pollutants — before problems escalate.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5-in-1 Detection:\u003c\/strong\u003e Measures CO₂ (400–5,000 ppm), HCHO (0–1.999 mg\/m³), TVOC (0–9.99 mg\/m³), temperature (0–50°C), and humidity (0–99% RH) simultaneously.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor-Coded CO₂ Alerts:\u003c\/strong\u003e Instant visual feedback — green (0–799 ppm), yellow (800–1,199 ppm), orange (1,200–1,599 ppm), and red (1,600+ ppm) — so you know at a glance when to ventilate.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Sensitivity Semiconductor Sensor:\u003c\/strong\u003e Fast \u0026lt;1-second response time with an electrochemical module for stable, low-interference readings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge 2.8\" TFT-LCD Display:\u003c\/strong\u003e 240×240 glass screen clearly shows all metrics plus battery level in one view.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Calibration Needed:\u003c\/strong\u003e Simply power on and start measuring — zero setup hassle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong Battery Life:\u003c\/strong\u003e Built-in 1,200 mAh lithium battery provides up to 30 hours of continuous use; recharges fully in ~2–3 hours via USB Type-C.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWi-Fi Connected:\u003c\/strong\u003e Supports Wi-Fi connectivity for smart home integration and remote monitoring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Slim 90 × 70 × 35 mm ABS body goes anywhere — bedroom, nursery, office, workshop, or classroom.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Ventilation Design:\u003c\/strong\u003e Multiple vents promote airflow around the sensors for faster, more accurate readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCO₂ Level Guide\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin-bottom:16px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n      \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eCO₂ Level\u003c\/th\u003e\n      \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eIndicator\u003c\/th\u003e\n      \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eRecommendation\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0 – 799 ppm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd; color:green;\"\u003e\u003cstrong\u003eGreen\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eExcellent air quality\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#fafafa;\"\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e800 – 1,199 ppm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd; color:#ccb300;\"\u003e\u003cstrong\u003eYellow\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eVentilate soon\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1,200 – 1,599 ppm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd; color:orange;\"\u003e\u003cstrong\u003eOrange\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eVentilate immediately\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#fafafa;\"\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1,600+ ppm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd; color:red;\"\u003e\u003cstrong\u003eRed\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePoor air quality — act now\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCO₂ Range:\u003c\/strong\u003e 400–5,000 ppm | Accuracy: ±150 ppm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 0–50°C | Accuracy: ±1°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHumidity Range:\u003c\/strong\u003e 0–99% RH | Accuracy: ±2% RH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHCHO Range:\u003c\/strong\u003e 0–1.999 mg\/m³\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTVOC Range:\u003c\/strong\u003e 0–9.99 mg\/m³\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 2.8\" TFT-LCD, 240×240, glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCasing:\u003c\/strong\u003e ABS plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e \u0026lt;1 second\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 1,200 mAh lithium | Up to 30 hours use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharging:\u003c\/strong\u003e USB Type-C, 5V\/1A, ~2–3 hours\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e Wi-Fi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 90 × 70 × 35 mm (3.54 × 2.76 × 1.38 in)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003e⚠️ Note: This device uses a semiconductor sensor that provides qualitative (indicative) readings rather than laboratory-grade quantitative precision. It detects mixed CO₂ such as exhaled breath — it is not designed to measure pure CO₂ gas. Minor color variation and ±1–2 cm measurement differences may occur.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Air Quality Monitor\u003c\/li\u003e\n  \u003cli\u003e1 × USB Charging Cable\u003c\/li\u003e\n  \u003cli\u003e1 × Instruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou Might Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/22awg-glass-tube-fuse-holder-5x20mm-6x30mm-screw-type-10-pack\"\u003e10-Pack 22AWG Glass Tube Fuse Holder – 5x20mm \u0026amp; 6x30mm Screw Type\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/140w-usb-c-fast-charging-adapter-auto-power-off-overcharge-protection\"\u003e140W USB-C Fast Charger with Auto Power-Off Overcharge Protection\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does this 5-in-1 air quality monitor actually measure?\u003c\/h4\u003e\n\u003cp\u003eA: It simultaneously measures five key air quality parameters: CO₂ concentration (400–5,000 ppm), formaldehyde (HCHO, 0–1.999 mg\/m³), total volatile organic compounds (TVOC, 0–9.99 mg\/m³), ambient temperature (0–50°C), and relative humidity (0–99% RH). All readings appear on the 2.8-inch color display in real time.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this monitor accurate enough for home use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — for everyday home and office monitoring it performs very well. It uses a high-sensitivity semiconductor sensor with a CO₂ accuracy of ±150 ppm and a \u0026lt;1-second response time. Keep in mind it provides indicative (qualitative) readings rather than laboratory-grade precision, and it detects mixed CO₂ (e.g., from human breath) rather than pure CO₂.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need to calibrate the device before use?\u003c\/h4\u003e\n\u003cp\u003eA: No calibration is required. Simply charge the device fully, power it on, and it will begin measuring your indoor air quality immediately. This makes it ideal for non-technical users who want plug-and-play simplicity.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long does the battery last and how do I charge it?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in 1,200 mAh lithium battery provides up to 30 hours of continuous use on a full charge. It recharges via the included USB Type-C cable (5V\/1A adapter) in approximately 2–3 hours.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this monitor in an office or classroom?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. High CO₂ levels in enclosed spaces like offices and classrooms are a leading cause of drowsiness and reduced concentration. This monitor's color-coded alerts make it easy to know when to open a window or improve ventilation — helping keep everyone alert and comfortable.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does this 5-in-1 air quality monitor actually measure?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It simultaneously measures five key air quality parameters: CO₂ concentration (400–5,000 ppm), formaldehyde (HCHO, 0–1.999 mg\/m³), total volatile organic compounds (TVOC, 0–9.99 mg\/m³), ambient temperature (0–50°C), and relative humidity (0–99% RH). All readings appear on the 2.8-inch color display in real time.\"}}, {\"@type\": \"Question\", \"name\": \"Is this monitor accurate enough for home use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — for everyday home and office monitoring it performs very well. It uses a high-sensitivity semiconductor sensor with a CO₂ accuracy of ±150 ppm and a \u0026lt;1-second response time. Keep in mind it provides indicative (qualitative) readings rather than laboratory-grade precision, and it detects mixed CO₂ (e.g., from human breath) rather than pure CO₂.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need to calibrate the device before use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No calibration is required. Simply charge the device fully, power it on, and it will begin measuring your indoor air quality immediately. This makes it ideal for non-technical users who want plug-and-play simplicity.\"}}, {\"@type\": \"Question\", \"name\": \"How long does the battery last and how do I charge it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The built-in 1,200 mAh lithium battery provides up to 30 hours of continuous use on a full charge. It recharges via the included USB Type-C cable (5V\/1A adapter) in approximately 2–3 hours.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this monitor in an office or classroom?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. High CO₂ levels in enclosed spaces like offices and classrooms are a leading cause of drowsiness and reduced concentration. This monitor's color-coded alerts make it easy to know when to open a window or improve ventilation — helping keep everyone alert and comfortable.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"black \/ United States","offer_id":47710904942697,"sku":"200000828:201335941#black;200007763:201336106","price":45.77,"currency_code":"USD","in_stock":true},{"title":"white \/ United States","offer_id":47710904975465,"sku":"200000828:201335940#white;200007763:201336106","price":45.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S3e008d33edfe4c2a97f424d2f8990f31x.webp?v=1782062815","url":"https:\/\/oasis-select.com\/products\/5-in-1-indoor-air-quality-monitor-co2-tvoc-hcho-temperature-humidity","provider":"Oasis Select","version":"1.0","type":"link"}