VEVOR Shutter Exhaust Fan, 12'' with Temperature Humidity Controller, EC-motor, 940 CFM, 10-Speed Adjustable Wall Mount Attic Fan, Ventilation and Cooling for Greenhouses, Garages, Sheds, ETL Listed

Here is the link to the manual: https://d2v0huudrf11kh.cloudfront.net/vevor-center-goods/ExhaustFanEC_1681723520023.pdf.<br/>

According to the manual, you can set the conditions for automatic opening and closing. The condition for setting high temperature is: the set temperature value is lower than the current temperature value; the condition for setting low temperature is: the set temperature value is higher than the current temperature value; the same is true for high humidity and low humidity.It is recommended to set one high temperature and one high humidity, so that it can be automatically opened and closed.

You can use the manual mode ON to control the gear of the fan, and the fan will run at the selected gear.

This product is equipped with a temperature and humidity controller, which can adjust the fan on and off according to the usage environment. It is suitable for basements, garages, and other spaces. The fan rotates to discharge indoor air, taking away heat, dust, odor, moisture, etc.

The timer works independently and is not affected by temperature and humidity settings, but it cannot be set to run for 5 minutes every hour and cannot work in cycles.