doseg

1. reach; range; scope
   Signal ima doseg od nekoliko kilometara. — The signal has a range of several kilometers.
   Ta raketa ima doseg od hiljadu kilometara. — That missile has a range of a thousand kilometers.
2. formal (usually plural) achievement; attainment
   Ovo delo spada u najviše dosege srpske književnosti. — This work is among the highest achievements of Serbian literature.

In everyday speech domet is more common for "range".