The antenna connector is one with the antenna body, because this design increases the resistance of the antenna to external conditions further. It is IP67 rated, making it weather proof. It is designed to work in the sub-GHz bands like US915, AU915, AS923, EU868, IN865, RU864.
 
The coverage that this antenna provides makes it ideal for deployment outdoors in a relatively high altitude spot within an urban area or a suburb of a fairly large urban area, because in such a scenario it is likely that the signal will reach a significant portion of a suburb or neighborhood without developing blind spots in close proximity to the exact physical location of the antenna.
 
As this is a lower dBi antenna, it is designed to provide better, fuller and more stable coverage for devices that are situated nearby as opposed to a higher dBi antenna, which would be able to do the same for devices that are situated further away from its location. The general logic related to the difference between a higher dBi antenna and a lower dBi antenna is best understood by viewing the above picture.