Security and Safety
This person spotted a keyhole embedded in a concrete wall and naturally, had a few questions. One Reddit user suggested that it’s a Knox Box. Imagine owning an apartment complex or a high-tech security firm. An alarm goes off in the middle of the night and firefighters need to get inside urgently.
provided by constative.com
They can’t sit around and wait for you to arrive and thus we have the Knox Box. Firefighters can either cause some damage and knock down a few doors or, they can be given access through a special key found inside the Knox Box. Similar devices are used for gated communities and hospitals. They allow emergency personnel in without having to wait for the owners.