Smart 3 speed fan controller with CO2 and air quality meter | sensor | 230VAC | 350-1999PPM | 0...+50°C | Wi-Fi | Modbus | TUYA
Code: ES-MIA-A900Smart WiFi 3-speed fan controller with Tuya app and Modbus interface – a modern solution for building ventilation, air quality, and microclimate management. The device is designed for residential, commercial, and industrial use, where precise airflow control, real-time air quality monitoring, and integration with BMS (Building Management System) systems are essential.
The controller not only controls fan speeds but also measures temperature, humidity, PM2.5, PM10, CO₂, and VOC levels, provides filter replacement reminders, and enables full automation based on time schedules or environmental conditions.-
Technical Specifications
Control: 3-speed fan
Communication: WiFi (Tuya App), Modbus
Control modes: Manual / Automatic
Dimensions: 86 × 86 mm
Screw spacing: 60 mm (standard)
Voltage: AC 220–240 V, 40–60 Hz
Controller power: ≤ 200 W
Standby power consumption: ≤ 2.0 W
Terminals: up to 2.5 mm² wires
Operating temperature: –10 °C ~ +50 °C
Storage temperature: –10 °C ~ +60 °C
Operating humidity: 5–90 % RH (non-condensing)
Storage humidity: ≤ 60 % RHMeasurement Ranges
Temperature: 0 °C ~ +50 °C
PM2.5: 1 ~ 999 µg/m³
CO₂: 350 ~ 1999 ppmMain Functions
3-speed fan control
Temperature and humidity display
PM2.5, PM10, CO₂ and VOC readings
Clock and date display
Time scheduling (7-day weekly program)
App-based control via Tuya App
Automatic / manual mode
Automatic screen brightness reduction at night
High-sensitivity environmental monitoring
Filter replacement reminder
Internal loop / electrostatic interface support
Ready for integration into BMS systems via ModbusApplications
Household user: Smart home ventilation control. Real-time air quality monitoring. Remote control via smartphone from anywhere. Comfortable indoor climate without complex settings.
Engineer / designer: Integration into building management systems (BMS). Modbus communication for reliable industrial connectivity. Accurate data for design decisions. Suitable for offices, hotels, schools, hospitals.
Electrician / technical staff: Standard 86×86 mm mounting. Clear terminals up to 2.5 mm². Fast installation and configuration. Long service life with minimal maintenance.Advantages
WiFi + Tuya App + Modbus in one device
Comprehensive air quality monitoring
7-day scheduling
Automatic and manual modes
Low power consumption
Long service life (≥10 years)
Suitable for residential and industrial applicationsDisadvantages
WiFi connection required for full smart functionality
Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
Love it? Share your thoughts in a review!Write Review Alternative products













