AP Sensing

LHD N45-Series (Linear Heat Detection)

Source: apsensing.com (accessed 2026-10-16). Confirm specifications with the manufacturer before ordering.

Specifications

Vendor: AP Sensing
Category: Fibre optic and structural
Class: Core integrity
Technique: Raman DTS-based linear heat detection, SIL-2 rated
Detects: hot spotstemperature
Mounting: Fibre sensing cable (3-4 mm) along equipment/structures; interrogator in rack
Communications: FibreEthernetWired (other)
Hazardous area: ATEX and IECEx certified; SIL-2 rated
Suitable assets: storage tanksother
Notes: Up to 16 km per channel, up to 4 channels, 2000 alarm zones per channel, up to 98 relay contacts, web server, EN54-22/UL521/FM/VdS approvals, MTBF 35 years. Fire-detection product.

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