Catalog > Simplex 4266-135 Heat Detector For Fire ...

Verified: January 13, 2026

Simplex 4266-135 Heat Detector For Fire Alarm Systems 477-007 Temp Rating 135°

~$30.70

The Simplex 4266-135 is a heat detector designed for fire alarm systems, with a temperature rating of 135°F for detecting high heat conditions.

Key Specifications

  • Compatibility: Simplex fire alarm systems
  • Temperature Rating: 135°F
  • Type: Heat Detector
  • Mounting: Standard electrical box
  • Operating Voltage: Typically 24 VDC
  • Response Time: Varies based on temperature increase
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