MBL is an acronym of words Microcomputer Based Laboratory. Hence, the term is used for experiments, where the measurement is supported by computer and/or systems which provide support for measurement of variety of quantities. Usually, the system consists from suitable sensor(s), which measure some quantity, and the results are collected by a computer or datalogger are consequently displayed on a screen of a the computer or the datalogger, to which the sensor is connected. MBL system provide users with unified control and data treatment which facilitates employment of the system in school directly during education process.