30 W. 60TH STREET

An alleged break-in three years ago still lingers in the memories of the board members of the Coliseum Park Apartments, a cooperative just west of the Time Warner Center. Why only alleged? Because the shareholder had no evidence anyone had illegally entered. No security camera footage. No damaged furniture. Just a valuable stamp collection gone missing. That's one reason the co-op board ultimately chose to install a rigorous new key fob access system that would not only make the building more secure but also give doormen far-reaching oversight of who entered and exited.

This year, the Coliseum Park Apartments on the west side of Manhattan installed an electronic key-fob system across 32 exterior and common-area doors. The technology, already widespread in new condominium developments, opens doors wireless and keylessly, and the data provided, like that of security cameras, helps allow the co-op's building management to target and control access. Yet once your co-op or condo board has decided to use a key-fob system and your residents are aboard, what are the steps to actually getting it installed?