The HD2030 is a portable 4 channel vibration analyzer able to perform spectral and statistical analysis. The instrument can supply all the measurement parameters required by the current normative concerning the operators protection from the risk connected with the vibrations and is able to measure in hand-arm and whole body modes. It is also possible to determine the vibrations transmitted to a person through the buildings. The HD2030 vibration analyzer detects accelerations on four axes through two accelerometers with integrated amplifying electronics (IEPE or equivalent type). Three axes are grouped in the right input, where it is possible to connect three accelerometers or a tri-axial one; the fourth axis is associated to left input.