Available in ±5 and ±50 ranges, self-contained Model SVR101 records accelerations for spectral analysis of vibration and peaks. It specifically records and time-tags X/Y/Z axis vibrations and peaks to provide history of shock and vibration conditions. To maximize memory use, datalogger only takes data when user preset trigger level is exceeded; min sampling rate is 2 sec. Real-time spectral data is measured and computed using FFT (Fast Fourier Transform) from 0 to 128 Hz.