According to NFPA 72, fire alarm equipment must operate within which temperature range?

The correct range established by NFPA 72 for the operation of fire alarm equipment is from 32 to 120 degrees Fahrenheit. This range is crucial because fire alarm systems need to be reliable and functional in a variety of environmental conditions.

Operating within this specified temperature range ensures that the equipment can effectively detect smoke or fire without being adversely affected by extreme temperatures.

For instance, temperatures below freezing (32°F) can cause issues with the functionality of electronic components and batteries, while excessively high temperatures can lead to overheating and potential failures. Therefore, adhering to this specific temperature range is vital for maintaining the integrity and reliability of fire alarm systems.

This range reflects the need for fire alarm systems to be adaptable for use in both residential and commercial environments, where temperatures can fluctuate based on occupancy and seasonality.