Description: A Machine Condition Indicator (MCI) is an electronic device, usually battery-powered, that monitors critical parameters of a machine tool, such as velocity, vibration, and temperature. Thus, certain dangerous conditions can be monitored, such as bearing failure or intermittent issues on unsupervised machines. Its indication is similar to the “Check Engine” light on a car, and requires the intervention of a serviceperson to detect the root cause. The device is stud-mounted or even glued to the machine it monitors. Data reading and signaling is done via LEDs or a wired or wireless computer interface.