OEM Ventilation Mainboard with 10 Relay Outputs External Sensors and Dual Fan Control

This multi-function HVAC control board is designed for fresh air ventilation, air quality management, and customized indoor climate control systems. With a compact board size of approximately 170 × 110 mm, it integrates multiple relay outputs and sensor interfaces to provide flexible control for a wide range of HVAC applications.

The board features 10 independent relay channels for controlling various external devices and system components. It supports external NTC temperature sensors, temperature and humidity sensors, PM2.5 sensors, and CO2 sensors, enabling real-time environmental monitoring and intelligent ventilation control. Two fan outputs are also available for flexible airflow management.

With its highly configurable hardware architecture, the board can be customized to meet different project requirements, including relay configuration, sensor interfaces, fan control, I/O functions, communication protocols, and control logic.

Ideal for fresh air systems, ventilation units, air purification equipment, residential HVAC systems, and indoor air quality solutions, the board supports OEM/ODM development from prototype design and functional testing to mass production.

• 10-Channel Relay Outputs — Provides multiple independent relay channels for controlling HVAC and ventilation devices.
• External NTC Temperature Input — Supports external temperature monitoring for customized HVAC control strategies.
• Temperature & Humidity Sensor Support — Enables environmental monitoring and intelligent ventilation control.
• PM2.5 Sensor Support — Can be integrated with external PM2.5 sensors for air quality monitoring.
• CO2 Sensor Support — Enables CO2-based ventilation strategies for improved indoor air quality management.
• Dual Fan Outputs — Supports control of two ventilation or fan outputs according to system requirements.
• Multi-Function HVAC Platform — Combines relay control and environmental sensing interfaces on one control board.
• Custom Control Logic — Functions can be adapted to different ventilation, air purification and air quality management requirements.