Technical specifications:

Measurement ranges:

CO2: 400–5000 PPM (±50±5% PPM)
CO: 0–999 PPM (±10 PPM)
TVOC: 0–9.99 mg/m³ (±0.05 mg/m³)
Formaldehyde (HCHO): 0–1.99 mg/m³ (±0.05 mg/m³)
PM2.5: 0–999 μg/m³ (±10 μg/m³)
PM1.0: 0–999 μg/m³ (±10 μg/m³)
PM10: 0–999 μg/m³ (±10 μg/m³)
PM0.3: 0–999 μg/m³ (±10 μg/m³)
Temperature: -10 ~ 50°C (±2°C)
Humidity: 0–99% RH (±5% RH)
Battery: 2000mAh lithium polymer battery (included)
Charging: 5V DC, 1A Type-C connection
Dimensions: 90x70x35 mm
Protection rating: IP40
Features:

3.5-inch TFT color touchscreen
WiFi control via Tuya app
Historical data (daily, monthly, yearly view)
Customizable alert limits and sleep mode
Automatic time and date synchronization
Daylight saving time adjustment
Sound and color alerts (green – good, orange – warning, red – danger)
Integration with smart devices (fans, air purifiers, etc.)
Supports 9 languages
USB charging cable and instructions included
Usage:

The air quality monitor is an ideal device for monitoring and controlling indoor air quality in various settings such as homes, offices, hotels, hospitals, schools, restaurants, gyms, and more. By using this monitor, you can constantly check levels of carbon monoxide, CO2, PM particles, formaldehyde, TVOCs, as well as temperature and humidity, ensuring clean and healthy air. WiFi control via the Tuya app allows remote operation, and alerts ensure a quick response to dangerous air conditions.

Pros:

Comprehensive air quality analysis: Measures multiple important air quality parameters.
WiFi and mobile control: Ability to monitor and control the device remotely via the Tuya app anytime and anywhere.
Alerts and visual signals: Sound and screen color alerts when air quality deteriorates.
Historical data: Ability to view air quality data by day, month, or year.
Convenient and compact design: Portable, space-saving, and fits easily in various environments.
Multifunctional features: Time and date synchronization, customizable alerts, sleep mode.
Cons:

Dependence on WiFi: Without a stable WiFi connection, the device cannot provide all functions, especially remote control.
Indoor use only: The IP40 protection rating limits outdoor or humid environment use.
Possible accuracy deviations: While accuracy is good, some parameter measurements may vary depending on environmental conditions.