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The Fire Safety Event 2022

25-27 April 2023
NEC, Birmingham

Exhibitor Products

Fire extinguishers

01 Jan 2023

700 Series Conventional Detectors

FireClass by Johnson Controls Stand: 3a/F50

The first conventional detector range from Johnson Controls that uses algorithms to determine fire conditions more precisely. This provides superior performance and improved false alarm rejection rates.

The 700 series of detectors are microprocessor-based conventional fire detectors. There are five models in the range, which measure certain parameters and respond to them. The parameters monitored are:

  • Smoke density
  • Fixed temperature
  • Rate of temperature​

The 700 series of detectors are used for conventional 2-wire detection systems, where detectors will normally be connected in zones. Each detector samples the ambient air every 5 seconds. If a fire condition is detected, a signalling current is drawn.

These intelligent, conventional detectors come with built-in drift compensation (P and PH variants only). Once the drift compensation limit has been reached, i.e. the detector has become too dirty to operate at the same sensitivity, the detector will automatically adjust the sensitivity to allow it to continue operating. This feature will extend the life expectancy of the detector. 


  • Designed for fast, easy installation
  • Low operational voltage
  • Available as smoke, fixed heat, RoR heat, and photo heat
  • Backward compatibility with 600 series
  • Compatible with 4”B-D, 4B and 5B based
  • Low profile and discreet design
  • Approval to EN54, LPCB standards
  • Built-in drift compensation


To learn more about the FireClass’ line of 700 Series Conventional Detectors, speak to one of our FireClass team at The Fire Safety Event 2023, or visit our website.


  • Fire Detection
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