Security & Fire Protection Systems/old hard wire fire detector


My relative is in Florida for 4 months. they have a 1979 hard wire fire detector. It was going off when checking the house. There is no battery back up. It is unplugged at the moment. How many years are the hard wire detectors good for?

Hi Thomas,

Every manufacturer is different and have their own recommendations on equiptment renewal. You are best contacting the manufacturer's service helpdesk for specific data.  However,  I can tell you that the industry average is a 10 years lifespan, making your equiptment  somewhat overdue an upgrade.

kind regards

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Malcolm Evans


I can answer questions relating to Fire systems and Gaseous Fire Suppression systems, both mechanical (including Integrity Testing) and electrical components (Addressable and Conventional systems) and can cover UK standards and regulations. Also, I am Ansul trained and certified in R-102 Ansul Kitchen Suppression system design, installation and maintenance.


I have 2 years experience with my current employer, a UK Fire Protection Company, in installation, testing and maintenance of various system types, and design of Ansul R-102 Kitchen Suppression systems.

FIA (Fire Industry Association) and BAFE (British Approvals for Fire Equipment) accredited. Ansul certified.

Secondary Education (GCSE's) and Technical College (City & Guilds).

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