The spacer is made of galvanized metal sheet and we recommended to use it if Roger access control device is to be installed on rough surface (porous), such as building facades.
AX-1 can be also used as electromagnetic screen, which prevents cross interferences of controllers/readers installed on the opposite sides of the same wall. Installation of AX-1 may result in reduction of reading distance by approx. 20%, which in many installations is fully acceptable.
Dimensions of AX-1 are matched to following devices:
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