The Zenitel Slim Door (ZSD-1) is a compact, powerful, and outdoor-ready intercom that delivers premium sound in a sleek ...

As the story goes, Van Kannel, working in a lobby during a cold winter in Philadelphia, complained about the unpleasant effects of the swing door at the main entrance ... and even security. Let’s take ...

Tourlock 180 security revolving door with dual biometric options Tourlock 180 is a ... with Alcatraz AI Rock The Circlelock Solo offers the highest level of unmanned entrance security, using an ...