Ⅰ. Upgrade your indoor air quality monitoring experience with an air quality monitor designed to accurately and comprehensively measure a variety of pollutants. This device uses a variety of sensors, including a DART formaldehyde sensor, a laser dust sensor, an NDIR infrared carbon dioxide sensor, and a temperature and humidity sensor, to measure CO2, PM2.5, PM10, TVOC, formaldehyde, and other pollutants in indoor air. Ⅱ. Key Features: Measurements: With an accuracy of 1 ppm, the air quality monitor provides information about the pollutants in your environment, so you can make informed decisions to create a living environment. Ⅲ. Wide Measurement Range: The device can detect carbon dioxide levels in the air, as well as measure various pollutants such as PM2.5, PM1.0, pollen, TVOC, temperature, and humidity, giving you a comprehensive understanding of indoor air quality. Ⅳ. Sensor Technology: The monitor is equipped with a variety of sensors, including a DART formaldehyde sensor, a laser dust sensor, and an NDIR infrared carbon dioxide sensor, ensuring measurements. Ⅴ. Design: With an integrated 128 MB memory card for data storage, the air quality monitor allows you to access previous measurements at any time. The device operates at DC 5V/2A and produces a sound level of 85dB (3M). Ⅵ. Connectivity: The monitor connects to Tuya App via WiFi, allowing you to check and control various home appliances such as smart curtains, fans, air conditioners, humidifiers, heaters, and air purifiers. Ⅶ. Compact and portable: With a measurement range of 400-5000 ppm and an operating temperature of 0ºC to 50ºC, the air quality monitor is designed for indoor use and can be easily carried and stored in a portable storage bag. Ⅷ. Specifications: HCHO measurement range: 0.01-1.25 mg/m3; HCHO accuracy: 0.03 mg/m3 or ± 5%; HCHO resolution: 0.01mg/m3; CO2 measurement range: 400-5000 PPM; CO2 accuracy: ± 50 ppm or ± 5%; CO2 resolution: 1ppm; TVOC measurement range: 0.01-19.99mg/m3; TVOC resolution: 0.01mg/m3; PM2.5 measurement range: 1-500ug/m3; PM2.5 resolution: 1μG/m3; PM10 measurement range: 1-500ug/m3; PM10 resolution: 1μG/m3; Temperature measurement range: -10-60°C; Temperature accuracy: ± 2°C; Humidity measurement range: 5% -95%; Humidity accuracy: ± 5%; Input voltage: DC 5V/2A; Memory card: 128 MB; Sound level: 85dB (3M); Operating temperature: 0°C-50°C; Operating humidity: 0-95% (non-condensing); Measurement range: 400-5000ppm; Measurement accuracy: 1 ppm; Measurement objects: carbon dioxide, PM2.5, PM1.0, pollen, TVOC, temperature, humidity; Power adapter: EU plug, US plug, UK plug (optional); Product color: white; Product size: 9*4*11cm / 3.5*1.6*4.3in; Product weight: 185g / 6.5oz; Package includes: 1 x Air Quality Monitor, 1 x Vertical Stand, 1 x Suspension Stand, 1 x Charger Adapter, 1 x Charger Cable, 1 x Instructions, 1 x Portable Storage Bag, 1 x Memory Card.