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System Sensor
5603

System Sensor 5603

$21.00
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 System Sensor 5603

135F Fixed Temp Single-Circuit Mechanical Heat Detector

System Sensor 5603 135F Fixed Temp Single-Circuit Mechanical Heat Detector is designed to provide dependable fixed-temperature fire detection in conventional alarm systems. Featuring a 135°F activation point, flexible mounting options, and easy visual identification, it delivers reliable performance across a wide range of residential and commercial applications.

  • Fixed 135°F temperature activation provides dependable heat detection for conventional fire alarm systems
  • Single-circuit mechanical design offers reliable operation in applications where smoke detection may not be suitable
  • Compatible with single-gang, 3.5-inch and 4-inch octagonal, and 4-inch square back boxes with plaster ring
  • Reversible mounting bracket supports both flush-mount and surface-mount installations
  • Post-activation indicator and clearly marked housing simplify detector identification and maintenance



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