This general purpose vibration, or g-sensor, can be used to monitor the operating condition of a product that utilises moving or rotating elements. Problems such as unbalance, or rolling element bearing damage cause the vibration characteristics to change. Measuring the vibration of machinery is an excellent way of monitoring the health of critical plant and equipment. Implementing a predictive maintenance program based on information taken from vibration monitoring can greatly increase the reliability of plant. This digital sensor is factory calibrated, combining low long term drift and low power consumption. Suitable to mount on machinery, bearings, doors, lifts, vehicles, washing machines, or any object, to sense vibration.