A new type of audible notification signal was introduced in the 2012 version of NFPA 72 that employs a low-frequency sound — in the 520 Hz range — when appliances are installed where people sleep. If ...

The Consumer Product Safety Commission has announced the recall of 29,000 Honeywell System Sensor L-series low-frequency Sounders and Strobe devices. The fire alarms are typically installed in ...

This month’s reader questions focus on sprinkler alarms. As it turns out, there is a lot of confusion over which NFPA rule — 13 or 72 — applies. Why does my local fire inspector think the fire alarm ...

Both the hearing and those who are hearing impaired must receive the same message, and it must be specific, consistent, certain, clear, and accurate. As stated in the 2007 edition of the National Fire ...

Even if you're not ready to take the plunge into fire alarm system design and installation just yet, you should still know the fundamentals in order to perform emergency work. This includes knowing ...

Fire detection systems are designed to discover fires early in their development when time will still be available for the safe evacuation of occupants. Early detection also plays a significant role ...

Fire alarm cabling has become incrementally more complex over the years, in part driven by the trend toward mass notification, which is a factor of the fire alarm system. Mass notification — a one- or ...

The Consumer Product Safety Commission has announced the recall of 29,000 Honeywell System Sensor L-series low-frequency Sounders and Strobe devices. They all have date codes 3034 or 3035 with the ...