Answer: TELEMETER
The answer TELEMETER has 7 possible clues. See the results below.
Possible Clues:
- Surveyor's instrument repositioned in the hollowed out elm tree
- Range-finding apparatus
- Scientific instrument for observing events at a distance
- Wobble when holding lunar module's scientific instrument
- Surveyor's tool
- The box is over length for US - send measurements
- Device for observing events at a distance and transmitting information back