To many, LINEAR HEAT DETECTION  is still either only considered for its original and traditional heavy Industrial applications OR is believed to be the slowest form of response because it relies on heat! If linear were a ceiling mounted regularly spaced POINT type detector who's response was determined by efficiency of air flows to the detector, then that assessment might be accurate  BUT for a combined 4.00 mms maximum diameter cable & automatic continuous detector which monitors  at ANY and ALL points along its installed length. Providing the same detection temperature regardless of how short the sensor cable length exposed to that temperature is! Depending on risk, Sensor cable installations  could be many kilometres long AND could be located at the exact point of risk and not the most convenient ceiling location, in which case that description of it being a slow response detector could not be further from the truth!

The close proximity of the temperature sensitive cable from the source of overheat or fire  temperature rise can allow it to detect an overheat and perhaps even PREVENT  a fire developing! After all, statistics identify that more than 80% of fires are undetected overheat conditions which are allowed to progress to combustion!

PROLINE FM approved, UL listed, 100% conformity with NFPA72 and the soon to be published EN54-28 standards - as well as many other International certifications - provides rapid detection of abnormal temperature rise , alarm point location AND be simply integrated with ANY manufacturers conventional or addressable central alarm or building management control panel.

PROLINE is a tried, tested, proven and very cost effective means of increasing detection capabilities in any number of ways..... including wiring of perhaps better known switching devices such as manual call points.....adding an additional detection capability at little increase to current  cost which employ or specify non heat sensitive interconnecting cable. Another application involves ground level protection around domestic buildings in forest fire risk areas. A detection ring of PROLINE sensor cable operating lawn sprinklers and operating steel roller shutters on the outside of a building to increase protection time until essential services can respond to the products alarm signal indication via the customer central alarm system. 

Price comparisons with any alternative detector on the majority of risks and efficiency and effectiveness of detecting small changes in even the worst of environments will high light PROLINE specification every time. There are no concerns over accidental sharp bends being placed on the sensor cable during its installation and them generating false alarms. No concerns about local mechanical Vibration, EMI or RFI interference. No worries about air pressures slowing response times in corridors etc with some other detectors, No concerns about correct location of small diameter tubing or the drilling of small sampling holes and No worries about PROLINE "simple electrical apparatus" safe operation within hazardous areas - which carries independent endorsements!!


For full product details, application examples and pricing please visit the Company website ….. or email Proline on  


Digital (LHS) & Analogue Linear Sensing

The means to locally monitor for temperature changes (rise or fall) at "point of risk" and at ANY /ALL locations along an installed length of temperature sensitive cable - regardless of environmental conditions.

Fibre Optic Linear Temperature Sensing

Line detection of temperature change and rate of rise along multi -kms lengths of small diameter fibre optic cable. It provides high performance near real time temperature Sensing and Alarm functionality with standard communication interfaces.

Proline 'Nero' Water & Moisture Detection

Rapid detection of the smallest of leaks within Industrial, Commercial Environments by a recoverable cable. Designed to provide 24 hours/day x 7 days/week continuous monitoring of areas where even the smallest of leaks can prove disastrous. Essential where undetected leakages can cause serious damage to today’s complex electrical, communications and computer networks.



A U.K. registered Company with hands-on product development, global market & application experience dating from the 1970's.

Proline equipment conforms to all NFPA 72 and EN54 standards requirements for linear detection.

Pneumatic, Digital, Analogue, Fibre Optics, Measuring Point System, Aspirating Systems...regardless of your linear detection requirement PROLINE will be happy to assist you.