Fire Alarm & Protection Blogs

Simplex 4098-9714 TrueAlarm Sensor: Complete Replacement Guide

The Simplex 4098-9714 is a TrueAlarm analog photoelectric smoke sensor — and it’s one of the best-selling fire alarm replacement parts in the industry. If you’re managing a Simplex 4100, 4010, or similar addressable fire alarm system, there’s a good chance this sensor is installed throughout your facility. This guide covers everything you need to… Read more »

Notifier FSP-851 Smoke Detector: Specs, Compatibility & Where to Buy

The Notifier FSP-851 is one of the most widely deployed intelligent photoelectric smoke detectors in commercial fire alarm systems across North America. If you’re managing a Notifier-based system and need a replacement detector, this guide covers everything — specs, base compatibility, panel support, and where to source genuine FSP-851 units. What Is the Notifier FSP-851?… Read more »

Edwards EST SIGA-PD vs SIGA-PS: What’s the Difference?

When maintaining an Edwards EST addressable fire alarm system, one of the most common questions technicians and facility managers face is: what’s the difference between the SIGA-PD and the SIGA-PS? Both are top-selling intelligent photoelectric smoke detectors from Edwards, but they serve different purposes. This guide breaks down the specs, applications, and compatibility of each… Read more »

Siemens HFP-11 Smoke Detector: Specs, Discontinuation & Replacement Guide

Siemens Two-Wire Photoelectric Smoke Detector HFP-11

Everything you need to know about the Siemens HFP-11 smoke detector — specs, compatibility with FireFinder XLS, discontinuation status, and the OP921 replacement. Order at Life Safety Consultants.

Why is My Commercial Fire Alarm Chirping?

Commercial Fire alarm

Is there a bird or some sort of animal in the office or the building? What’s that chirping noise? Oh, it’s the fire alarm. Why is the commercial fire alarm chirping? In a commercial setting, even a small beep can raise big concerns. Is it a malfunction? A low battery? A bigger issue hiding behind… Read more »

Operational Tips for Fire Control Panels

Fire Control Panels

Fire alarm control panels are arguably the most important aspects of fire alarm systems. Although they’re often tucked away in electrical rooms or behind closed doors, these panels are used to control your entire fire alarm system. Understanding how to properly manage and maintain these panels can make a significant difference in safety, compliance, and… Read more »

An Overview of Manual Pull Stations

Manual Pull Stations

If you own a larger commercial building, a fire alarm system alone is not enough. Manual pull stations give occupants the ability to trigger an emergency alert the moment they spot trouble — before automatic sensors even activate. They are a critical layer of protection that can save lives and limit damage during a fire…. Read more »