The ECO 8 can process 8 samples in Ø 16 mm test tubes plus 1 sample in a Ø 22 mm test tube simultaneously, whilst ECO 25 can process 25 samples in Ø 16 mm test tubes simultaneously. They come complete with a test tube cover for increased safety and reliability. Five different temperatures (70, 100, 120, 150 and 160 °C) and four analysis times (30 , 60, 120 minutes or in continuous) can be set. An acoustic signal indicates the end of analysis and the instrument switches off automatically.