① 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. ② 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. ③ 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. ④ 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. ⑤ 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). ⑥ 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. ⑦ 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. ⑧ 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.