The MA120 antenna is a high performance 450MHz and 868MHz combination thread mount antenna for external use with smart meters, gateways, mesh networks, vehicles and outdoor and indoor assets. It is designed for heavy duty work with extra thick threads. The UV resistant polycarbonate housing is resistant to vandalism and direct attack. At only 29mm high and a diameter of 49mm this unique antenna is the lowest profile and smallest worldwide. The antenna has been tested in free space and on varying sizes of ground-planes, showing good frequency stability, allowing its use in many different mounting environments. The IP67 and IP69K rated housing makes it waterproof against short immersion in water, and also against high pressure water jets used in industrial cleaning. A closed cell foam on base prevents water leaking into mounting hole, while also providing a secure seal to a contoured surface.