Linear Heat Sensing Cable

The Protectowire Company, Inc. is a worldwide leader in the manufacture of Linear Heat Detectors and Special Hazard Linear Heat Detection Systems. Solutions include complete alarm systems for fire detection and protection for a vast array of industrial and commercial applications.

protectowire image

protectowire image 2

protectowire image 3

Protectowire Linear Heat Detector


  • Line coverage...continuous sensitivity
  • Four temperature ratings
  • Withstands severe environmental conditions
  • Approved for hazardous locations
  • Easy to install, test and splice
  • Compatible with other inititation devices on same circuit
  • Separate pre-alarm and alarm actuations (Type TRI)


download imageDownload IST Linear Heat Detector data sheet

protectowire image