It is a system of functional test of end production line. The refrigerators parked in a test zone, there are 2 or 3 probes of temperature, in the frigo and the freezer space. The test can last from 1 to 3 hours to second of the model, it records the temperatures and at the end of the test it gives an indication if the refrigerator works well. If interface the system to the PLC it is possible to send automatically the not working in the repair zone. The system creates the archives of the carried out tests, that it is possible see again or to interrogate for statistical calculations. The system is flexible and expandable, the MAREL srl has realized small systems with 80 refrigerators, until 800 refrigerators for one advanced every day production of 2000 pieces. Also the test software is made in order to satisfy all the requirements.