The Alpha Communications IHS527 Surface-Mount Single-Gang Plastic Back Box is for use with the AlphaEcall 200 Series Wireless Emergency Call System(s). The back box is used to surface mount the various AlphaEcall 200 Series Wireless stations and devices. The IHS527 is constructed of durable ABS plastic to coordinate with the emergency switches, and does not interfere with wireless transmission signals. The back box includes mounting holes on the back for attachment to the wall. Typically, the Wireless Support Module is placed inside the IHS527, and then the Wireless Emergency Station is attached to the mounting holes on the front of the IHS527. The IHS527 is made in an exclusive two-piece design, allowing for much quicker battery changes going forward, without the need for removing the calling station from the box.