Forbes contributors publish independent expert analyses and insights. I am an investigative attorney and physical security specialist. Many buildings, including apartment and condo complexes, are ...

The system sends a signal to the door controller, which actuates the electronic door lock. Related: 7 Best Banks for Real Estate Investors + Landlords What Types of Door Releases Are Available? The ...

Users will be able to connect with their apartment building's intercom system to talk to guests and buzz them in right from their phone. Originally hailing from Troy, Ohio, Ry Crist is a writer, a ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The process of selecting the right intercom system for a broadcast or post-production facility, ...

The circuit provides a simple illustration of a door phone intercom system having a two-way communication using the features of LM386 amplifier. Intercom – short for intercommunication, is an ...

Group entry hacks are a favorite for hacker social groups. Why use old fashioned keys when you can use newfangled electronic keys? If you are looking to build a simple RFID-based security system to ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. There are three types of communication that can convey complex information: written, visual (i.e.