A testing thermo-chamber, which is equipped with a bearing (1), heat exchanger (2) and a tension bar (4) for attaching the tested object. The inner room of the bearing ( 1 ) is equipped with a temperature sensor ( 3 ), the heat exchanger (2) being connected to more heating and cooling circuits (6) with multiport control valves (9), interconnected to thermostats (10) and by-passing branches (11), temperature sensor (3) is connected to the temperature regulator (12 ) further connected to thermostats (10) and a control unit (13) interconnected with multiport control valves (9).
