ac infinity airlift t14, shutter exhaust fan 14" with temperature humidity controller, ec motor - wall mount ventilation and cooling for sheds, attics, workshops ac infinity <b>product description</b> <p>a high-airflow exhaust fan designed to cool and ventilate greenhouses, garages, attics, workshops, and sheds. the system can automatically eliminate heat, moisture, odor, and dust from enclosures, rooms, and buildings. features an lcd display with remote smart temperature and humidity sensors, as well as customizable fan speeds. innovative ec-motor with pwm-control maximizes airflow while reducing energy consumption and noise levels. heavy-duty build features aluminum blades, steel wire guards, and steel shutters. includes everything needed to mount the fan unit and power it through an outlet.</p> <b>smart programming </b> <p>the controller included with each unit features active temperature and humidity monitoring. fan speeds can be programmed to automatically adjust to high and low temperatures and humidity. the program can be manually set to run continuously or on a timer at custom speeds. also features alarm warnings, fan failure alerts, eco-mode, and backup memory. included 12-foot corded sensor probe plugs into the controller to provide temperature and humidity readings. the controller can control up to two airlift series fans. </p> <b>heavy-duty performance</b> <p>features steel shutters that are weather and corrosion resistant, and automatically closes when not in use. the blades and impeller are constructed of lightweight aluminum, weight-balanced to reduce vibrations. utilizing an innovative ec motor that is controlled electronically using pwm (pulse width modulation), the fans can maximize airflow while reducing noise and power consumption. the fully-enclosed motor is also permanently lubricated and houses dual-ball bearings that are rated at 67,000 hours. the unit is ip-44 rated to be highly resistant to dust and liquids, and performs well even in harsh environments.</p>