The microgenerator converts kinetic energy from the vibration of the equipment running at mains frequency (50 or 60Hz) into electrical energy. It can generate up to 5mW, which is enough to power a wireless transmitter sending up to 6Kbyes of critical data every few minutes, or smaller amounts of data—such as a temperature reading—several times a second, the vendor says. The microgenerator is installed by screwing it into place, or it can be held in place by magnets.