To readily constitute a system for surely preventing an error of mistaking cells and cross-over contamination even in the case of installing a plurality of thermostatic devices for medical use having different specifications caused by a variety of makers and types in a testing room and integratively controlling them.

In the control system in which a plurality of incubators 24 are arranged in a culture operation room 12 and cells of different donors are treated in each incubator 24, a supporting frame 40 stood on the floor 60 of the culture operation room 12 is equipped with lock units 38 and 110 for controlling the opening and closing of doors 24A for each incubator 24. Consequently, the lock units 38 and 110 are installed separately from the incubators 24.