Inline Duct Fan Furnace&Parts Accessories HVAC Fans 6 Speeds Timer Sensor

Inline Duct Fan Furnace&Parts Accessories HVAC Fans 6 Speeds Timer Sensor

• [6 Speed Fan Speed Control]​ This 4 inch duct fan features 6 adjustable speed levels, covering ultra quiet sleep mode, gentle daily ventilation, enhanced air exchange, and high speed powerful exhaust. You can freely switch airflow volumes to suit different scenarios such as nighttime rest, bathroom dehumidification, or grow tent cooling, balancing noise and airflow as needed.
• [Smart Humidity Sensor & Automatic Ventilation]​ This 4 inch duct fan is equipped with an intelligent temperature and humidity sensor. When temperature or humidity exceeds the preset value, the fan starts automatically and stops once the levels drop. The clear digital display monitors temperature and humidity in real time, ensuring stable airflow in grow tents, bathrooms, greenhouses, and similar spaces — convenient and efficient operation.
• [Remote Control with Timer]​ This 4 inch inline duct fan comes with a user friendly remote control for easy remote operation. Without touching the unit, you can switch modes, adjust fan speed, or turn the fan on and off, providing stable and convenient ventilation for grow tents, hydroponic setups, or home use.
• [Quiet & Efficient Air Delivery]​ This 4 inch duct fan delivers a powerful airflow of up to 183 CFM while operating at a noise level as low as 24 dB. It easily balances air power and noise. It also comes with a 5-foot power cord for quick installation.
• [100% Pure Copper AC Motor & Efficient Airflow]​ This 4 inch duct fan is equipped with a pure copper DC motor with a speed of up to 5000 RPM, delivering strong performance, excellent heat dissipation, and long-lasting durability. Compared to standard motors, its cooling effect is improved by 30% and energy consumption reduced by 50%. This duct fan booster is designed for continuous high-load operation, ensuring reliability even in high or low temperature environments.
• [Safe & Durable, 24/7 Customer Support]​ This 4 inch duct fan is made of high quality ABS material, with an IPX4 waterproof rating and FCC certification for safe operation. This 4 inch inline fan offers stable performance, overheat protection, a 2 year warranty, and round-the-clock customer support. For any issues, please contact the seller directly for assistance — no returns required. (Note: ventilation ducts are not included.)