Precautions On Installation; If Installing On A Metal Wall - Samsung SSA-R1003 Quick Manual

PRECAUTIONS ON INSTALLATION

If installing on a metal wall

If you install the reader on a metal wall, the read range may
be reduced.
To avoid this problem, it is recommended to insert the
spacer between the metal wall and the reader as shown
below.
8
_Installation and External Connection
Metal
Wall
Spacer
Reader