Deister Electronic GmbH PRM5SWH2100 用户手册

Mount the single-gang backplate (with tamper magnet installed) onto the 
wall.

FIGURE 1. Model SWH-2100 Reader Backplate 

(includes tamper switch magnet)

Mounting holes fit standard U.S. single-width electrical box and 
standard European (EMEA) electrical box hole patterns.