Devices that transmit data from a distance using radio waves, such as unmanned spacecraft and weather balloons, use telemetry.

Telemetry is a method of quick communication, usually via radio transmissions but sometimes in other ways, like telephones or computer networks. It's a quick way for data to be received and measured by astronomers, meteorologists, doctors, and law enforcement officials, among others. The word telemetry comes from the French télémètre, which is made up of télé, "far," and mètre, "meter" or "device for measuring."

Definitions of telemetry
  1. noun
    automatic transmission and measurement of data from remote sources by wire or radio or other means
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    type of:
    measure, measurement, measuring, mensuration
    the act or process of assigning numbers to phenomena according to a rule
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