BFKK
BFKK 4 Inch Inline Duct Fan Kit with Timer Humidity Sensor and Temperature Remote
A quiet 4-inch inline duct fan kit with timer, humidity sensor and temperature remote delivers up to 310 m³/h airflow at 24 dB
- Automatic climate control with real-time humidity and temperature sensors
- Quiet 24 dB operation delivering up to 310 m³/h airflow
- Energy-efficient copper DC motor uses 50% less power than standard motors
- Programmable timer runs 0-9h50m with memory for preferred settings
- Six adjustable speeds up to 5000 RPM for heavy-duty ventilation
4 Inch Inline Duct Fan Kit
The BFKK kit supplies a 4 inch inline duct fan with integrated timer, humidity sensor and temperature remote. It is built for greenhouses, grow tents and similar enclosed spaces that need automated air exchange. A pure copper DC motor drives the impeller at up to 5000 RPM.
Growers needing hands-free climate control
This unit suits growers who want the fan to start automatically when humidity or temperature exceed preset limits. The digital display shows current conditions and the timer can be set for run periods up to 9h50m. Buyers who need wireless app control or data logging should look elsewhere because no separate software or connectivity module is included.
310 m³/h maximum airflow
The fan delivers up to 310 m³/h (183 cfm) at its highest speed while operating at 24 dB. Six adjustable speeds and smart automatic control adjust airflow to match sensor readings, offering up to 30% energy savings over constant-speed running. This airflow figure is the key number for matching the fan to your duct size and room volume.
Highlights
- Automatic climate control with real-time humidity and temperature sensors
- Quiet 24 dB operation delivering up to 310 m³/h airflow
- Energy-efficient copper DC motor uses 50% less power than standard motors
- Programmable timer runs 0-9h50m with memory for preferred settings
- Six adjustable speeds up to 5000 RPM for heavy-duty ventilation
Specifications
No published specifications for this item yet.
Questions about this item
How is the inline duct fan installed and what step is often missed?
Mount the 4 inch fan in the duct run, secure it with the supplied base, cord and screws, then wire the humidity and temperature sensor so the automatic speed control can function.
What maintenance or replacement will the fan need over time?
The pure copper DC motor is built for continuous heavy-duty use; periodically clean the blades and housing to maintain the 310 m³/h airflow and 24 dB noise level.
What limit appears first during sustained operation?
The timer caps each run at 9 h 50 m and must be reset manually after every power cycle, so that is the first constraint you will hit in long sessions.
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