Staffing a guard booth, guard shack, or gate house with security personnel can be very costly. Even if you only pay minimum wage, every hour that goes by with a person sitting in the gate house costs you $7.25. Since that person has to remain in the guard shack, they can’t be productively doing anything else either. Also, when they take mandatory breaks, then the gate is left unmanned, which causes frustration to anyone who arrives at the gate during those periods.
The solution is to close down the guard booth and replace it with a long-range wireless outdoor intercom. With it, you do not need dedicated personnel to sit at the gate. You can use handheld two-way radios or base station intercoms placed in one or several locations. With the handheld radio, monitoring personnel can be mobile so they can still be productive at doing something else while attending to visitors.
Not only can staff talk to visitors, they can also press a button on their radio to unlock the gate remotely to let visitors in. There is no need for a trip to the gate.
With these intercoms, a range of a couple of miles can be achieved in some conditions so they should work for most applications.