Accelerometer, cable, spike probe, magnet, case. Castle GA2008 Exilis General Purpose Pocket Vibration Meter. Castle GA2008 is a small, lightweight, reliable instrument providing all the fundamental vibration measurements in a single key stroke, at an economical price. It is designed for production managers, maintenance engineers and anyone carrying out condition-monitoring tasks. Integral mechanical and linear filters Data-logging of 9 data points Acceleration, Velocity & Displacement parameters Measurement in rms, Max rms and peak values Can be used in conjunction with a sound level meter to trace the source of a sound