The Sevrin class science vehicle was a mobile laboratory station used by the Federation.
Their primary purpose was the gathering of scientific data as well as any other forms of information useful to the colonists. They were essentially a large scaled mobile tricorder, the Sevrin was capable of conducting scientific, medical and engineering scans. They used a sophisticated sensor array which was invaluable when locating new sources of natural minerals.
It was unarmed and though it possessed a great deal of shielding, it was essential that they were escorted through dangerous positions. The crew requirements were just two individuals; a driver and a technician, the latter of which would monitor all the sensory data they were receiving. There was, however, room for a third officer if required which was usually filled by either a Doctor, Engineer of an additional Science officer when the away mission required more specialist assistance.