A device for heating or cooling multiple single chamber containers or a multi-chamber container. The plurality of louvers is movable between a closed position and a diffuse position. A sample of oil is positioned on a heat conducting device supporting the test strip and the oil is allowed to migrate over the adsorbent material thereby displacing the polar indicator in an amount related to the amount of polar compounds in the oil. After a subsequent mode has been selected, the first computing section does not switch the maps which are referred to in the variable gear ratio control if the steering wheel turning angle \u03b8s is greater than or equal to a predetermined threshold value \u03b1. For improved data transfer rate, radio links from a remote module leap past the nearest remote module to the next module closer to the base station. In characteristic manner, said target is wherein said zirconia stabilizer is at a molar content lying in the range 2% to 30% and wherein said zirconia is formed by more than 90% of a monoclinic phase.