The Tango 37 answers the need for a single antenna package that can operate local wireless connections between sensor and control units at the same time as long range connections over the GSM network. This antenna is just right for many IOT applications where the two wireless applications are coincident.
Typically, many local short range wireless needs are for switching products on and off in buildings without using wires from the controller to the switch. Additionally, if the same controller needs to be receiving or sending information on a wider scale then an LTE modem or router is an accepted way of doing this.
Up until now this kind of situation would have needed two separate antennas. The Tango 37 is a small weather resistant package of just 80mm Ø x 13mm height; ideal for outside deployment. With the coming of buildings being controlled over the internet & from mobile phones, this antenna makes the job easy. Think NEST temperature controllers for the home. Whilst they use WiFi for long distance communication it could be LTE and of course their local switching is 868MHz - the best ISM frequency for maximum penetration through walls.