HTT4 controller is a controller designed specifically for four-motor lifting products. Through manual operation, height restrictions, system lock-in 

and anti-collision sensitivity(optional) can be achieved. It can be used for all GeMinG office series lifting columns. It ensures the synchronization and 

smooth operation of the lifting system, and can be soft stopped and soft stopped. All controllers have a resistance recovery function(optional) 

that prevents objects from being squeezed or bumped during lifting.