![Fire alarm on white concrete wall. Warning and security system. Emergency equipment for safety alert. Red Fire alarm on white concrete wall. Warning and security system. Emergency equipment for safety alert. Red](https://static.vecteezy.com/system/resources/previews/007/763/026/non_2x/fire-alarm-on-white-concrete-wall-warning-and-security-system-emergency-equipment-for-safety-alert-red-box-of-fire-alarm-on-wall-of-school-hospital-factory-office-apartment-or-home-pull-down-photo.jpg)
Fire alarm on white concrete wall. Warning and security system. Emergency equipment for safety alert. Red
![What is this rectangular object next to the smoke detector in my apartment?Thank you! : r/whatisthisthing What is this rectangular object next to the smoke detector in my apartment?Thank you! : r/whatisthisthing](https://preview.redd.it/tb7xzbjeapm61.jpg?width=640&crop=smart&auto=webp&s=3bcd8c44936cb83b950a4d465e35f5f970950bd9)
What is this rectangular object next to the smoke detector in my apartment?Thank you! : r/whatisthisthing
![Hey! Can anyone tell me what type of a fire alarm/horn this is? I have 2 in my new studio apartment and they're really fucking loud : r/firefighters Hey! Can anyone tell me what type of a fire alarm/horn this is? I have 2 in my new studio apartment and they're really fucking loud : r/firefighters](https://i.redd.it/7adns7u9rq131.jpg)
Hey! Can anyone tell me what type of a fire alarm/horn this is? I have 2 in my new studio apartment and they're really fucking loud : r/firefighters
![What is this speaker in my apartment? I've heard of things being able to detect smoke, crowds, vape, or thc. Is this one of them? It's not a fire alarm, I have What is this speaker in my apartment? I've heard of things being able to detect smoke, crowds, vape, or thc. Is this one of them? It's not a fire alarm, I have](https://i.redd.it/g4vb80zbnjy81.jpg)
What is this speaker in my apartment? I've heard of things being able to detect smoke, crowds, vape, or thc. Is this one of them? It's not a fire alarm, I have
![This thing on the wall of my apartment, there's another one on the other side of the wall in the bedroom : r/whatisthisthing This thing on the wall of my apartment, there's another one on the other side of the wall in the bedroom : r/whatisthisthing](https://external-preview.redd.it/7skQ0LFqVAKhfNbjddPqfJKwjrnZKctGgYFh-iGE5JU.jpg?auto=webp&s=795b13f39e9bb4f8e787312d04847eaa06875c2a)