The POTTER CF-135-MP sealed heat detector provides dependable thermal fire detection for applications where smoke sensors are impractical. Calibrated to activate at 135°F, this detector responds to rapid temperature increases characteristic of fire conditions while resisting nuisance alarms from cooking or steam. The sealed design eliminates maintenance requirements and protects internal components from dust and environmental contamination, extending operational lifespan. Compact form factor suits confined spaces, kitchens, and industrial environments. Professional-grade construction ensures consistent performance in demanding conditions. Ideal for facilities requiring supplementary heat detection alongside smoke detection systems or as primary protection in high-humidity or high-dust areas.

The Thermoflex® line features both standard detectors and models designed for hazardous environments and moisture-resistant uses. Each detector can be configured with single or multiple circuits, offering options for open and/or closed contact arrangements. Model numbers beginning with “CR” indicate detectors with both rate-of-rise and fixed temperature functions, while those starting with “CF” are fixed temperature only. Standard fixed temperature points are 135°F and 200°F, with additional options available at 165°F and 285°F.

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