Linear heat detection (LHD) from Technoswitch

SMART Fire & Safety 2024 Products & Solutions, Fire & Safety


SecuriHeat LHD by Securiton prevails where conventional fire detectors reach their physical limits. It copes well with extreme temperatures and constantly high atmospheric humidity, while precise measurements are also possible when corrosive gases and contaminated air are present.

The ADW-535 comes with an intelligent signal evaluation, offering state-of-the-art sensors, processors, and programming expertise. The result is effective fire protection with a minimum of effort.

Protectowire’s linear heat detection range distinguishes itself with its unparalleled versatility and easy installation process. The Protectowire Confirmed Temperature Initiation (CTI) LHDs are advanced multi-criteria detectors using thermocouple technology, which allows the detector to distinguish between a short caused by physical damage or a short caused by heat actuation.


They are available in a wide range of operating temperatures ranging from 68°C to 180°C and have outer jackets to cater for all types of environments.

Protectowire Fibre Optic LHD systems are designed for high-risk commercial and industrial hazards that demand high reliability and customised system features. This linear heat detection system uses fibre optic sensing technology and is capable of detecting temperature changes as small as 1°C per minute.


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