{"product_id":"sk-heat-ror-w-rate-of-rise-thermal-sensor-silent-knight","title":"SK-HEAT-ROR-W RATE-OF-RISE THERMAL SENSOR – SILENT KNIGHT","description":"Silent Knight SK-HEAT-ROR-W Rate-of-Rise Thermal Sensor delivers dual-function heat detection with 135°F fixed-temperature and 15°F-per-minute rate-of-rise capabilities. Two-wire addressable SLC connection features rotary decimal addressing for simple configuration on silent knight fire panels.\u003cbr\u003e\u003cbr\u003eDual bi-color LEDs provide 360° visibility—green in standby, red in alarm. Remote testing from the control panel and magnet-activated functional test switch enable reliable verification without manual access. Tamper-resistant design protects against tampering.\u003cbr\u003e\u003cbr\u003eModular base design allows tool-free installation and service. Draws minimal standby current of 200 µA at 24 VDC. Operates across -4°F to 100°F temperature range with 10–93% humidity tolerance.\u003cbr\u003e\u003cbr\u003eUL Listed (S6228) and FM Approved per UL 268 7th Edition. UL approved for 50 ft center spacing; FM approved for 25 x 25 ft layouts. Mounts on B300-6 base (2.0″ high, 6.1″ diameter). Voltage range 15–32 VDC.","brand":"Fire Alarm Supplies","offers":[{"title":"Default Title","offer_id":67689940549817,"sku":null,"price":110.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/2263\/6473\/files\/SK-HEAT-ROR-W.jpg?v=1791742018","url":"https:\/\/firealarmsupplies.com\/products\/sk-heat-ror-w-rate-of-rise-thermal-sensor-silent-knight","provider":"Fire Alarm Supplies","version":"1.0","type":"link"}