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Product Archives

PCBA for Automatic Exhaust Fan Control – Energy Saving with Dial Speed Adjustment

Humidity-Responsive Automation:
Activates fan when moisture exceeds preset levels
Manual operation switch for immediate ventilation

Adjustable Airflow Control:
Rotary dial for continuous speed adjustment
Three predefined airflow settings

Energy Conservation:
Low-power standby mode
Automatic shutoff after extended operation

Residential Compatibility:
Matches standard home exhaust fan dimensions
Simplified wiring connections

Assemble 20 PCBs for $0

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