GeoVision GV-R1352 Card Reader (13.56 MHz) - Manual (Page 5)

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Note for Waterproofing
To prevent water from penetrating the reader from the rear panel, use the following
waterproofing measures when installing GV-DFK1355, GV-RKV1355, GV-RKR1355, or GV-
RKD1352.
1. The rear panel of GV-DFK1355 or GV-RKV1355 has waterproofing rubber rings. Install
the reader tightly against the wall to prevent water from entering along the wall. Apply
silicone sealant to the sides of the reader if it is mounted on an uneven surface.
2. Apply silicone sealant to the sides of GV-RKR1355 or GV-RKD1352 readers to prevent
water from entering along the wall.
(X) A gap between the wall and the reader (O) The reader against the wall