Do you need an outdoor antenna for your 3G or 4G router?
The Poynting 4G-XPOL-A001 4G Antenna is a wetherproof 4G antenna that can be mounted outdoors is a location with a good 3G/4G signal to deliver this along the dual 5m long cables and connect to your 3G/4G router.
You would use this antenna if you have located your 3G/4G router in a position with a poor 3G/4G signal but have a good 3G/4G signal close by eg outdoors. It is not a booster antenna - you will need to install it in a location to benefit from a stronger 3G/4G network signal.
the 4G-XPOL-A0001 is a Cross Polarised LTE antenna so can be used with all 4G routers that have MiMo antenna connectivity ie. 2 x antenna ports. It covers the 2G, 3G and 4G network frequencies so can also be used with 3G routers that have dual antenna connectors (main and Aux)