Silent Knight SK-HEAT-HT-W — white, low-profile addressable thermal detector shipped as a fixed high-temperature sensor with a 190°F (88°C) alarm point.
The HT suffix is the ordering number for high heat, but the rating that matters follows the programmed mode, not the part number. Set for fixed temperature or rate-of-rise, any SK-HEAT-W model is rated to a 100°F ambient; set for high heat, to 150°F. All three are field programmable through the panel; this one arrives set for high heat.
- High heat rating 190°F (88°C), fixed; RTI classification QUICK
- Installation temperature -4°F to 150°F (-20°C to 66°C) set for high heat
- Two-wire SLC, 15 to 32 volts DC peak; 200 µA operating and 4.5 mA maximum at 24 VDC
- Rotary decimal point-ID addressing and a magnet-activated functional test switch
- Spacing 50 ft (15.24 m) center to center UL; FM approved 25 × 25 ft
- UL 521 certified, meets UL 268 7th Edition; UL S6228, CSFM 7270-0559:0511
Order by the full suffix: SK-HEAT-W is the 135°F fixed model and SK-HEAT-ROR-W adds rate-of-rise above 15°F per minute, both arriving set for modes rated to 100°F. Bases ship separately: B300-6 or B501-WHITE.