Real Dictionary

telemeter in American English
an instrument for determining the distance to a remote object; range finder
to transmit by telemeter
intransitive verb: to telemeter radio signals, data, etc
noun: any of certain devices or attachments for determining distances by measuring the angle subtending a known distance
transitive verb: to transmit (radio signals, data, etc.) automatically and at a distance, as between a ground station and an artificial satellite, space probe, or the like, esp. in order to record information, operate guidance apparatus, etc

telemeter in British English
noun: any device for recording or measuring a distant event and transmitting the data to a receiver or observer
verb: to obtain and transmit (data) from a distant source, esp from a spacecraft