4000CI Series Internal Controller - AirROS By SAGE Industrial

Illustrated in the image is the 4000CI series Internal Controller, characterized by its solid cover and marked with an "R" to signify its capability for remote sensor connectivity, and a "2" indicating its role as a secondary controller within the AirROS air purification system. 

This controller is engineered to be paired with a remote sensor and operates in tandem with a primary control unit, facilitating extensive and accurate control over the purification process, particularly in managing ROS levels. 

The robust solid cover not only shields the internal electronics from external elements but also complements the overall design aesthetics of the device, ensuring durability and visual integrity.