Reconnaissance probe
A reconnaissance probe or scouting probe was a type of probe that was used by Starfleet ships in the late-24th century. 

Class 3 and class 5 probes have been used for reconnaissance missions. (; ; ) 

In 2370, Lieutenant Worf suggested that the  could launch reconnaissance probes to supplement their sensors, in the effort to locate the Fleming, lost in the Hekaras Corridor. Lieutenant Commander Geordi La Forge however pointed out this wouldn't be effective, as the tetryon interference in the area made it difficult to maintain contact with the probes. ()

In 2373, a high-resolution reconnaissance probe was launched from  to study the clothing and physical appearance of the population of the  region on a planet in the Delta Quadrant. ()

In 2375, Lieutenant Commander Worf regretted not sending out reconnaissance probes to scan for enemy activity, after the  was captured by a Jem'Hadar unit while studying a subspace compression anomaly. ()

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Probes