This paper introduces the works and the results performed for monitoring vibrations at the foot of sensitive equipment to evaluate the severity of mechanical environments and estimate the equipment’s remaining lifespan. We have developed a prototype system that measures accelerations and calculates, in real time, the shock response spectra and fatigue damage spectra, which characterize shock and vibration-induced fatigue severities. Despite the computational demands of these indicators, we successfully integrated them into a compact datalogger capable of real-time data acquisition and processing. Our study demonstrates the feasibility of continuously monitoring and analyzing vibrations throughout the equipment’s lifecycle without human intervention. An embedded classifier further enhances the system by detecting different usage conditions, effectively identifying various life situations. These capabilities provide two fundamental insights into the equipment’s reliability: • Reliability Assurance: Ensuring the equipment has not been subjected to mechanical stresses exceeding those it was qualified for during vibration table tests, both for shocks and cumulative fatigue from vibrations. • Residual Lifetime Assessment : Evaluating the remaining operational lifespan of the equipment by considering its specific mission profile. Finally, the processed data from the datalogger can be utilized to design new equipment subjected to similar mechanical environments, with a high confidence regarding the mechanical environment.