ODM2 Equipment Type Controlled Vocabulary ODM2 Working Group A vocabulary for describing types of equipment used for making observations. Examples include sensors, batteries, radios, dataloggers, samplers, etc. Power supply An electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another (e.g., solar to chemical). Power component Definition adapted from Wikipedia. See http://en.wikipedia.org/wiki/Power_supply