BM-EVO2 is an advanced respirometry system of two identical reactors where it is possible to carry out two tests (one per reactor) at one or different times. This system allows the respirograms and results monitorization on sumultaneous way as the test are being performed along the time. The two BM software loaded in one PC allows the temperature, oxygenation and sample settinbgs on individual mode for each reactor and be adapted to the conditions of the actual process.