Model: 2403B, 2.4-2.5 GHz, 3dBd. Used came from a school surplus auction. Was pulled from a working system. Cushcraft omnidirectional antenna. The enclosure is constructed of a durable polycarbonate. It measures 1 inch in diameter, 11.5 inches in height and weighs 4 ounces. The antenna is an excellent choice for superior RF coverage in warehouses, auditoriums, shopping malls, industrial complexes and more.