1、3 Gears Wind Speed Adjustable: Digital display air system controller can select manual, timed and automatic modes to control the wind speed operation of air fan, and intelligently adjust the startup and wind speed of it. 2、Air Quality Monitoring: Real time monitoring of indoor air quality, effectively improve air quality, create a healthy and comfortable working and living environment, and save energy and environment. Widely used for residential, shopping malls and industrial places, etc. 3、LCD Display: This temperature controller adopts large LCD display, which allows you read the data easily and clearly. Convenient and practical. 4、Anti Interference Chip: The intelligent temperature controller adopts high reliability chip, with strong anti interference ability and high reliability. 5、Filter Screen Alarm Prompt: When the filter screen has been working for more than 1000 hours, the filter screen icon flashes, and the fan works normally. When the filter screen has been working for more than 3000 hours, the filter screen alarm icon is always on. Item Type: Air System Intelligent Controller Product Size: 8.7x8.6x4.3cm / 3.42x3.39x1.69in Material: ABS Gross Weight: 216g / 7.6oz Output Interface: 3 gears wind speed, bypass valve Temperature Sensing Component: NTC thermistor Consumable Power: <1w Load Power: <300w Display: LCD display Applications: Used in residential, shopping malls and industrial places 1 x Temperature Controller 1 x Manual 2 x Screw