Weidmuller GPRS Alarm Unit - Manual (Page 74)

Hardware
5-72
5.1.3 Wall mounting
There are two mounting plates intended for mounting of the device on
the wall. The mounting plates are fastened with screws on the rear side
of the housing and must be mounted as shown in the illustration. The
top-hat rail adapter must be removed if you mount the device on the
wall.
Mounting using a top-hat rail Mounting on the wall