Technical Specifications:

Operating Modes: Automatic, manual, timer mode
Fan Speed Mode: High, medium, low, and automatic fan speed; 0-10V proportional fan output
Time Setting: Weekly timer with different fan speeds, on/off timing
Connection: RS485 communication
Wi-Fi Control: TUYA mobile application
Screen Energy Saving Mode: Screen brightness adjustment, automatic energy saving, longer color screen lifespan
Voltage Range: AC 95-240V
CO2 Regulation Range: 500-4000 PPM
CO2 Screen Range: 0-5000 PPM
PM2.5 Regulation Range: 0-500 μg/m³
PM2.5 Screen Range: 0-500 μg/m³
VOC Regulation Range: 0-5.0 PPM
VOC Screen Range: 0-5.0 PPM
Sensor Warm-up Time: 2 minutes
Response Time: ≤10 s
Temperature Range: 0-99°C
Humidity Range: 5-90% RH
Control Power: ≤200 W
Rated Power: <2 W
Output Connection: 3-speed fan, DC 0-10V 
Dimensions: 80×80×40 mm (Length x Height x Depth)
Mounting Hole Dimensions: 60±5 mm (2.36±0.2 inches)
Protection Class: IP30
Usage: This smart ventilation system controller with various sensors and Wi-Fi control is designed for indoor air quality monitoring and ventilation system optimization. Ideal for use in residential and commercial buildings, such as hotels, offices, schools, gyms, and other places where clean and fresh air is essential. Sensors such as CO2, VOC, PM2.5, temperature, and humidity ensure that the ventilation system adjusts automatically according to environmental conditions.

Pros:

Smart Control: Wi-Fi and TUYA app support allows remote system control.
Air Quality Monitoring: Integrated CO2, VOC, PM2.5 sensors and temperature, humidity monitoring ensure optimal indoor air quality.
Easy Control: Ability to control fan speed and the system via mobile phone or touch screen.
Automatic Settings: Ability to set automatic and timer modes to ensure ventilation operates as needed.
Long Service Life: Screen energy-saving mode and smart features extend the system’s lifespan.
Cons:

Price: Due to smart features and technology, the system may be more expensive than basic ventilation control systems.
Requires Wi-Fi and TUYA Infrastructure: To fully utilize this device’s capabilities, a Wi-Fi network and compatible TUYA app are required.
Complex Setup Procedure: Smart features and sensors may require a more complicated installation and configuration procedure.