When fire alarm control panels, power supplies, or notification appliances need to operate in harsh environments, a NEMA-rated enclosure is essential. Safety Technology International (STI) manufactures the EnviroArmour line of enclosures specifically designed to protect life safety equipment from weather, dust, vandalism, and temperature extremes. With dozens of sizes and configurations available, choosing the right… Read more »
Fire Alarm & Protection Blogs
STI Stopper II vs Universal Stopper: Which Pull Station Cover Do You Need?
Protecting your fire alarm pull stations from vandalism, false alarms, and accidental activation is essential for any commercial building. Safety Technology International (STI) makes the two most popular pull station protective covers in the industry: the Stopper II and the Universal Stopper. But which one is right for your facility? In this guide, we’ll break… Read more »
The Advantages of Having a Smoke Detector Dust Cover
Smoke detectors are essential for any commercial building, working around the clock to detect smoke and keep occupants safe. But what happens when something as small as dust starts to affect that critical piece of equipment? That’s where smoke detector dust covers come in. Issues Caused By Dust and Debris in Commercial Smoke Detectors Like… Read more »
Fire Alarm System Preventive Maintenance: Annual Checklist & Parts
A well-executed annual preventive maintenance (PM) visit is the foundation of a reliable commercial fire alarm system. It’s also one of the most time-efficient and cost-effective things a fire alarm contractor or in-house facilities team can do to prevent unplanned service calls, avoid AHJ violations, and extend the service life of expensive system components. This… Read more »
Smoke Detector Sensitivity Testing: When to Clean vs. Replace
NFPA 72 requires that commercial smoke detectors be tested for sensitivity on a scheduled basis — within the first year of installation and every other year thereafter. Yet sensitivity testing is one of the most frequently skipped or superficially performed elements of a fire alarm inspection. For fire alarm technicians, understanding the testing process, what… Read more »
Fire Alarm Notification Appliances: Horns, Strobes & Speaker Strobes Explained
Fire alarm notification appliances — the horns, strobes, and speaker-strobes that alert building occupants to evacuate — are a critical link in the fire alarm chain. Despite their importance, they’re often overlooked during preventive maintenance until they fail a test or visibly malfunction. Understanding the different types of notification appliances, the code requirements that govern… Read more »
What Is a Fire Alarm Initiating Device? Types & Replacement Guide
Fire alarm initiating devices are the sensory layer of any commercial fire alarm system — the components that detect a fire condition and send a signal to the control panel to initiate an alarm. Understanding the different types of initiating devices, how they work, and when they need replacement is fundamental knowledge for facilities managers,… Read more »
Gamewell-FCI Fire Alarm Parts: XP95, E3 Series & Replacement Guide
Gamewell-FCI has been a significant player in the commercial fire alarm market for decades, with particularly strong market share in healthcare, education, and government facilities. Now operating under the Honeywell umbrella, Gamewell-FCI systems — particularly the XP95 addressable detector series and E3 Series control panels — represent a large installed base that requires ongoing maintenance,… Read more »
Fire Alarm System Upgrade vs. Replace: How to Decide
At some point, every facilities manager or building owner faces the same question: the fire alarm system is aging, repairs are becoming more frequent, and someone is asking whether it’s time to replace the whole system or keep repairing what’s there. There’s no universal answer — but there is a framework for making the decision… Read more »
How Long Do Commercial Fire Alarm Detectors Last? Replacement Timeline Guide
One of the most common questions facilities managers ask is: how long do commercial fire alarm detectors actually last? The answer depends on the detector type, installation environment, and how closely you follow NFPA 72 maintenance guidelines. Understanding detector lifespan is critical — not just for compliance, but for avoiding the much higher costs of… Read more »

