The LHS Linear Heat Sensor is a flexible, durable and cost-effective fixed-temperature fire detector, suitable for protecting a wide range of commercial and industrial fire applications.

LHS™ is a small diameter cable capable of detecting heat from a fire over its entire length. The sensor cable consists of a twisted pair of 19 AWG copper coated steel conductors covered by a temperature sensitive insulation, and protected by either a plastic braid or jacket for various environmental applications.

The LHS Linear Heat Sensor is designed for open area, as well as proximity detection. A wide range of jackets and operating temperatures are available for proper system design, including confined areas or harsh environments which prohibit the use of other forms of detection. LHS is compatible with any fire control panel that is capable of accepting contact closure type initiating devices.


  • Fixed temperature digital heat detector
  • Four alarm temperatures available: 155°F, 190°F, 220°F, 356°F
  • Compatible with all fire control panels
  • Connect directly to initiating circuit
  • Cost-effective solution for hazardous locations
  • Ideal for sse in applications where spot-yype heat detectors are unsuitable

Technical Specifications

  • See Data Sheet

Listing & Approvals

  • FM Approved
  • UL Listed
  • CSFM Approved