telemeter

A measuring, transmitting, and receiving device used in telemetry.

To measure, transmit, and receive (data) automatically from a distant source, as from a spacecraft or an electric power grid.

An instrument for determining distances in surveying, in artillery practice, etc.

An apparatus for recording electrically at a distance the indications of a physical or meteorological instrument.

An instrument used for measuring the distance of an object from an observer.

A measuring instrument which sends the information obtained from its sensors by radio to a distant station, usually to be recorded there; also, the complete system including measuring instrument, transmitter, and receiver. Such instruments are used, for example, to measure conditions in space or in other locations difficult of access for humans observers, or merely to allow one observer to monitor conditions in many places simultaneously.

Any device used in telemetry

A device used for rangefinding, especially of military targets

any scientific instrument for observing events at a distance and transmitting the information back to the observer