This is an in-vehicle power adapter for the Cel-Fi GO-M. It has a NEMA 4 rated plug.
NEMA 4 rated products are suitable for use outdoors and indoors and are not damaged by precipitation or ice.
Cel-Fi warranties all of their amplifiers, antennas, and RF components for 2 years against any workmanship or material defects.
Read more about Cel-Fi’s warranty policy here.