Tri-axial accelerometers are high-level output transducers requiring no additional amplification since the amplifier is built into the transducer. They connect directly to the MP3X unit of the Biopac Student Lab System to provide three outputs, each simultaneously measuring acceleration in the X, Y, and Z direction. The 5 g accelerometer is well suited for measuring slow movements, whereas the 50 g accelerometer is made to measure quick movements. With the proper equipment and proper scaling parameters listed below, precise acceleration measurements can be obtained.