{"title":"Heat Detectors","description":"\u003cp\u003eHeat detectors respond to temperature rather than smoke, which makes them the right choice in places where a smoke detector would nuisance-alarm: kitchens, garages, boiler rooms, laundries, attics, loading docks and dusty or fume-laden industrial spaces.\u003c\/p\u003e \u003cp\u003eTwo mechanisms cover most applications. \u003cstrong\u003eFixed-temperature\u003c\/strong\u003e detectors trigger when the air at the detector reaches a set point — commonly 135°F or 190°F, with the higher rating used where ambient temperatures are normally elevated. \u003cstrong\u003eRate-of-rise\u003c\/strong\u003e detectors trigger on a rapid temperature climb even before the fixed point is reached, catching fast-developing fires sooner. Many detectors combine both.\u003c\/p\u003e \u003cp\u003eChoose the rating by the room's normal maximum temperature, not by the fire you expect: a detector rated too low will trip on a hot afternoon, and one rated too high will sit through a real fire. Spacing is reduced compared to smoke detectors, so plan for more devices per area.\u003c\/p\u003e","products":[{"product_id":"system-sensor-5151-conventional-heat-detector","title":"System Sensor 5151 Conventional Heat Detector","description":"\u003ch2\u003eSystem Sensor 5151 100 Series Conventional Heat Detector,135F Fixed Temperature Rate of Rise\u003c\/h2\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":43132756689120,"sku":"5151","price":41.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/system-sensor-heat-detectors-default-title-system-sensor-5151-conventional-heat-detector-31897157730528.jpg?v=1763278643"},{"product_id":"system-sensor-5251rb-heat-sensor","title":"System Sensor 5251RB Heat Sensor","description":"\u003ch2\u003eSystem Sensor 5251RB Heat Sensor ROR - Analog\u003c\/h2\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":43132756721888,"sku":"5251RB","price":67.65,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/system-sensor-heat-detectors-default-title-system-sensor-5251rb-heat-sensor-31897157599456.jpg?v=1763278649"},{"product_id":"system-sensor-5603-heat-detector-1","title":"System Sensor 5603 Heat Detector","description":"\u003ch2\u003eSystem Sensor 5603 135F Fixed Temp, Single-Circuit Mechanical Heat Detector\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eMultiple configurations. The 5600 series offers a full line of configurations to accommodate a broad range of applications. Both single- and dual-circuit models are available for low- and high-temperature ratings with either fixed temperature or combination fixed temperature\/rate-of-rise (ROR) activation. The ROR element of the fixed\/ROR models is restorable to accommodate field testing.\u003cbr\u003e\u003cbr\u003eInstallation flexibility. To satisfy a variety of installation needs, the 5600 series easily mounts to single-gang and octagonal back boxes. And these models accommodate four-square back boxes, when used with a square to round plaster ring. The reversible mounting bracket permits both flush- and surface-mount back box installations.\u003cbr\u003e\u003cbr\u003eVisual identification. The 5600 series provides clear markings on the exterior of the unit to ensure that the proper detector is being used.\u003c\/p\u003e\n\u003cp\u003eAlphanumeric characters identify the activation method, as well as the temperature rating, in Fahrenheit and Celsius degrees. Fixed temperature models are identified FX, while combination fixed\/ rate-of-rise units are marked FX\/ROR. The 5600 series also provides a post-activation indicator in the form of a collector. When the detector is activated, the collector drops from the unit, making it easy to identify the unit in alarm.\u003c\/p\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":43132756754656,"sku":"5603","price":19.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/files\/system-sensor-heat-detectors-default-title-system-sensor-5603-heat-detector-35460766761184.jpg?v=1763278633"},{"product_id":"system-sensor-5604-194f-fixed-temperature-heat-detector","title":"System Sensor 5604 194°F Fixed Temperature Heat Detector","description":"\u003ch2\u003eSystem Sensor 5604 Single-Circuit Mechanical Heat Detector, 194°F Fixed Temperature\u003c\/h2\u003e\n\u003cp\u003eThe System Sensor 5604 is a single-circuit mechanical heat detector designed to provide reliable fixed-temperature fire detection in environments where smoke detectors may not be suitable. As part of the trusted \u003cstrong\u003e5600 Series\u003c\/strong\u003e, this detector offers dependable performance and cost-effective property protection for a wide range of commercial, industrial, and residential applications.\u003c\/p\u003e\n\u003cp\u003eFeaturing a \u003cstrong\u003e194°F (90°C) fixed-temperature activation point\u003c\/strong\u003e, the 5604 is ideal for areas where elevated ambient temperatures or airborne contaminants could cause unwanted smoke detector activations. Its rugged mechanical design requires no external power for sensing, making it a durable and low-maintenance solution for conventional fire alarm systems.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSingle-circuit mechanical heat detector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFixed temperature activation at 194°F (90°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePart of the System Sensor 5600 Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCost-effective fire detection solution\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal where smoke detectors are not appropriate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReliable mechanical operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow maintenance design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with conventional fire alarm systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDurable metal construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for commercial, industrial, and residential applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGenuine System Sensor heat detector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThe System Sensor 5604 is ideal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWarehouses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBoiler rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUtility rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGarages\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturing facilities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStorage areas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCommercial buildings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial facilities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProperty protection applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNon-life-safety installations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer: System Sensor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModel: 5604\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Series: 5600 Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Type: Mechanical Heat Detector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDetection Method: Fixed Temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eActivation Temperature: 194°F (90°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCircuit Type: Single Circuit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstallation: Ceiling or wall mount\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConstruction: Durable metal housing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eApplication: Conventional fire alarm systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntended Use: Property protection and non-life-safety applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the System Sensor 5604?\u003c\/h2\u003e\n\u003cp\u003eThe System Sensor 5604 provides dependable fixed-temperature fire detection in environments where smoke detection may not be practical. Its durable mechanical construction, maintenance-friendly design, and economical price make it an excellent choice for protecting commercial, industrial, and residential properties. As part of the proven 5600 Series, the 5604 delivers reliable performance for conventional fire alarm systems while helping reduce nuisance alarms in challenging environments.\u003c\/p\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":43132756787424,"sku":"5604","price":21.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/system-sensor-heat-detectors-default-title-system-sensor-5604-heat-detector-31897159696608.jpg?v=1763278654"},{"product_id":"system-sensor-5621-heat-detector","title":"System Sensor 5621 Heat Detector","description":"\u003ch2\u003eSystem Sensor 5621 is a 135°F fixed temperature, rate-of-rise, dual-circuit, mechanical heat detector\u003c\/h2\u003e","brand":"System Sensor","offers":[{"title":"Default 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Title","offer_id":43132756918496,"sku":"5624","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/system-sensor-heat-detectors-default-title-system-sensor-5624-heat-detector-31897159074016.jpg?v=1763278660"},{"product_id":"siemens-hfpt-11-500-033380-plug-in-two-wire-thermal-detector","title":"Siemens HFPT-11 (500-033380) Plug-In Two-Wire Thermal Detector","description":"\u003ch2\u003eSiemens HFPT-11 (500-033380) Plug-In Two-Wire Thermal Detector is compatible with FireFinder XLS and FS-250 control panel families (Replaced by OH921)\u003c\/h2\u003e\n\u003cp\u003eThe HFPT-11 features a microprocessor chip and highly stable solid-state electronic circuitry technology.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":43132761669856,"sku":"HFPT-11","price":132.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/siemens-heat-detectors-default-title-siemens-hfpt-11-500-033380-plug-in-two-wire-thermal-detector-31998410588384.jpg?v=1763278808"},{"product_id":"siemens-hi921-s54320-f5-a2-local-heat-detector","title":"Siemens HI921 (S54320-F5-A2) Local Heat Detector","description":"\u003ch2\u003eSiemens HI921 (S54320-F5-A2) Local Heat Detector (Static + ROR)\u003c\/h2\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":43132769992928,"sku":"HI921","price":80.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/siemens-heat-detectors-default-title-siemens-hi921-s54320-f5-a2-local-heat-detector-31896956764384.jpg?v=1763278872"},{"product_id":"simplex-4098-9402-lifealarm-heat-detector","title":"Simplex 4098-9402 Lifealarm Heat 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Detector","description":"\u003ch2\u003eSimplex 4098-9615 SSD Heat Detector 200 ROR\u003c\/h2\u003e","brand":"Simplex","offers":[{"title":"Default Title","offer_id":43132776743136,"sku":"4098-9615","price":44.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/simplex-heat-detectors-default-title-simplex-4098-9615-ssd-heat-detector-31897048219872.jpg?v=1763279056"},{"product_id":"simplex-4098-9733-heat-sensor-white-nema-1-rated","title":"Simplex 4098-9733 Heat Sensor White NEMA 1 rated","description":"\u003ch2\u003eSimplex 4098-9733 Alarm Sensor provides an analog measurement digitally communicated to the host control panel using Simplex addressable communications\u003c\/h2\u003e\n\u003cp\u003eAt the control panel, the data is analyzed to determine an average value. Similar to the \u003ca href=\"https:\/\/thefirealarmsupplier.com\/products\/simplex-4098-9714-photoelectric-smoke-heat-sensor\"\u003e\u003cstrong\u003eSimplex 4098 9714\u003c\/strong\u003e\u003c\/a\u003e, an alarm or abnormal condition is triggered by comparing the sensor’s present value against its stored average and time parameters.\u003cbr\u003e\u003cbr\u003eTo be used with bases: 4098-9792 (\u003cspan\u003eStandard Sensor Base), 4098-9788 (2-Wire Base with connections for Remote Alarm LED Indicator), 4098-9789 (Sensor Base with wired connections for LED alarm indicator or relay), 4098-9791 (4-Wire Sensor Base - requires separate 24 VDC), 4098-9780 (2-Wire Sensor Base).\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Simplex","offers":[{"title":"Default Title","offer_id":43132777464032,"sku":"4098-9733","price":19.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/files\/simplex-heat-detectors-default-title-simplex-4098-9733-heat-sensor-white-nema-1-rated-32666817724640.jpg?v=1763279048"},{"product_id":"system-sensor-5602-heat-detector-1","title":"System Sensor 5602 Single-Circuit Mechanical Heat Detector","description":"\u003ch2\u003eSystem Sensor 5602 194F Fixed Temp\/Rate-of-Rise, Single-Circuit Mechanical Heat Detector\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe 5600 series offers a full line of configurations to accommodate a broad range of applications.\u003c\/p\u003e\n\u003cp\u003eBoth single and dual-circuit models are available for low and high-temperature ratings with either fixed temperature or combination fixed temperature rate of rise (ROR) activation.\u003c\/p\u003e\n\u003cp\u003eThe ROR element of the fixed\/ROR models is restorable to accommodate field testing. System Sensor’s 5600 series mechanical heat detectors offer a low-cost means for property protection against fire, and for non-life-safety installations where smoke detectors are inappropriate.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":43132796698848,"sku":"5602","price":20.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/system-sensor-heat-detectors-default-title-system-sensor-5602-heat-detector-31897158418656.jpg?v=1771880448"},{"product_id":"silent-knight-sk-heat-ror-w-heat-detector","title":"Silent Knight SK-HEAT-ROR-W Heat Detector","description":"\u003ch2\u003eThe Silent Knight SK-HEAT-ROR-W is a heat detector with rate-of-rise and fixed thermal detection\u003c\/h2\u003e\n\u003cp\u003eIt's designed for both performance and aesthetics, with a modern design and advanced thermal technologies. \u003cbr\u003e\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":43132802466016,"sku":"SK-HEAT-ROR-W","price":86.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/silent-knight-heat-detectors-default-title-silent-knight-sk-heat-ror-w-heat-detector-31897007620320.jpg?v=1763279551"},{"product_id":"thermotech-302-135-rate-anticipation-heat-detector-135-f-2","title":"Thermotech 302-135 Rate-Anticipation Heat Detector 135°F","description":"\u003ch2\u003eThermotech 302-135 135°F Rate-Anticipation Heat Detector, Internal Vertical Mounting\u003cbr\u003e\n\u003c\/h2\u003e","brand":"Thermotech","offers":[{"title":"Default Title","offer_id":43132846833888,"sku":"302-135","price":30.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/files\/thermotech-heat-detectors-default-title-thermotech-302-135-rate-anticipation-heat-detector-135-f-34869470429408.jpg?v=1763277164"},{"product_id":"thermotech-302-epm-135-rate-anticipation-heat-detector-135-f","title":"Thermotech 302-EPM-135 Rate-Anticipation Heat Detector 135°F","description":"\u003ch2\u003eThermotech 302-EPM-135 135°F Rate-Anticipation Heat Detector, 40' 40' UL, Explosion-Proof Mounting\u003cbr\u003e\n\u003c\/h2\u003e","brand":"Thermotech","offers":[{"title":"Default Title","offer_id":43132846866656,"sku":"302-EPM-135","price":61.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/files\/thermotech-heat-detectors-default-title-thermotech-302-epm-135-rate-anticipation-heat-detector-135-f-33577332343008.jpg?v=1763279840"},{"product_id":"thermotech-302-epm-194-rate-anticipation-heat-detector-194-f","title":"Thermotech 302-EPM-194 Rate-Anticipation Heat Detector 194°F","description":"\u003ch2\u003eThermotech 302-EPM-194 194°F Rate-Anticipation Heat Detector, 40' 40' UL, Explosion-Proof Mounting\u003cbr\u003e\n\u003c\/h2\u003e","brand":"Thermotech","offers":[{"title":"Default Title","offer_id":43132846899424,"sku":"302-EPM-194","price":90.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/files\/thermotech-heat-detectors-default-title-thermotech-302-epm-194-rate-anticipation-heat-detector-194-f-35052523258080.jpg?v=1763279841"},{"product_id":"thermotech-302-et-135-all-weather-heat-detector-135-f","title":"Thermotech 302-ET-135 All Weather Heat Detector 135°F","description":"\u003ch2\u003eThermotech 302-ET-135 135°F All Weather Heat Detector with Hexagonal Grip Bushing, Vertical Mounting FM and UL\u003cbr\u003e\n\u003c\/h2\u003e","brand":"Thermotech","offers":[{"title":"Default Title","offer_id":43132846932192,"sku":"302-ET-135","price":33.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/files\/thermotech-heat-detectors-default-title-thermotech-302-et-135-all-weather-heat-detector-135-f-34869470855392.jpg?v=1763277195"},{"product_id":"system-sensor-5601p-135f-fixed-temp-rate-of-rise-heat-detector","title":"System Sensor 5601P 135°F Heat Detector Rate-of-Rise","description":"\u003ch2\u003eSystem Sensor 5601P 135°F Fixed Temperature and Rate-of-Rise Single-Circuit Mechanical Heat Detector with Plain Housing\u003c\/h2\u003e\n\u003cp\u003eThe System Sensor 5601P is a single-circuit mechanical heat detector designed to provide dependable fire detection in environments where smoke detectors may not be suitable. Combining \u003cstrong\u003e135°F (57°C) fixed temperature\u003c\/strong\u003e activation with \u003cstrong\u003erate-of-rise\u003c\/strong\u003e detection, the 5601P responds quickly to rapidly increasing temperatures while also activating when the fixed temperature threshold is reached.\u003c\/p\u003e\n\u003cp\u003eFeaturing a plain white housing, the 5601P is ideal for residential and light commercial installations where a discreet appearance is preferred. The restorable rate-of-rise sensing element allows routine field testing without damaging the detector, while the external alarm indicator provides a clear visual indication after activation.\u003c\/p\u003e\n\u003cp\u003ePart of the proven System Sensor 5600 Series, the 5601P offers simple installation with a reversible mounting bracket, easy-to-use SEMS screw terminals, and compatibility with a wide range of electrical back boxes, making it suitable for both new installations and replacement projects.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSingle-circuit mechanical heat detector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e135°F (57°C) fixed temperature activation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRate-of-rise detection (approximately 15°F per minute)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePlain white housing for residential applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRestorable rate-of-rise sensing element for field testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExternal alarm indicator drops upon activation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReversible mounting bracket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSEMS screw terminals for quick wiring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports 14 to 22 AWG wiring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with multiple electrical box types\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUL 521 listed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGenuine System Sensor heat detector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThe System Sensor 5601P is ideal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eResidential buildings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGarages\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUtility rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBoiler rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWarehouses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCommercial buildings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial facilities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAreas where smoke detectors are unsuitable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConventional fire alarm systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer: System Sensor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModel: 5601P\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Series: 5600 Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Type: Mechanical Heat Detector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCircuit Type: Single Circuit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHousing Color: Plain White\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDetection Method: Fixed Temperature and Rate-of-Rise\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFixed Temperature Rating: 135°F (57°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRate-of-Rise Threshold: Approximately 15°F (8.3°C) per minute\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum Installation Temperature: 100°F (38°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOperating Humidity: 5% to 95% RH, non-condensing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContact Ratings:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e6 to 125 VAC: 3 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e6 to 28 VDC: 1 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e125 VDC: 0.3 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e250 VDC: 0.1 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWiring Capacity: 14 to 22 AWG\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDiameter: 4.57 inches (116 mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeight: 1.69 inches (43 mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 6 oz (170 g)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounting Compatibility:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSingle-gang back box\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e3.5-inch octagon box\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e4-inch octagon box\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e4-inch square box with square-to-round plaster ring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompliance: UL 521\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the System Sensor 5601P?\u003c\/h2\u003e\n\u003cp\u003eThe System Sensor 5601P delivers reliable heat detection in environments where smoke detection may not be practical. By combining \u003cstrong\u003e135°F fixed temperature\u003c\/strong\u003e sensing with \u003cstrong\u003erestorable rate-of-rise technology\u003c\/strong\u003e, it provides fast response to rapidly developing fires while allowing routine testing without replacing the detector. Its simple installation, durable mechanical design, and broad mounting compatibility make it a trusted choice for residential, commercial, and industrial fire protection applications.\u003c\/p\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":43132847227104,"sku":"5601P","price":20.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/files\/system-sensor-heat-detectors-default-title-system-sensor-5601p-heat-detector-38266011222240.webp?v=1763277223"},{"product_id":"fire-lite-h365-addressable-heat-detector-135-f-fixed-thermal-sensor","title":"Fire-Lite H365 Addressable Heat Detector 135°F Fixed Thermal Sensor","description":"\u003ch2\u003eFire-Lite H365 Addressable Heat Detector, Low-Profile Intelligent 135°F Fixed Thermal Sensor and LiteSpeed Only, White\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe Fire-Lite H365 Series addressable plug-in thermal detectors are designed for both performance and aesthetics.\u003c\/p\u003e\n\u003cp\u003eA new modern, sleek, contemporary design and advanced thermal technologies make the H365 Series ideal for both system operation and building design.\u003c\/p\u003e\n\u003cp\u003eModels include the H365 fixed heat detector, H365R rate-of-rise heat detector and H365HT high temperature heat detector.\u003c\/p\u003e\n\u003cp\u003eAvailable in both white H365 (LiteSpeed protocol only) and ivory H365-IV (CLIP and LiteSpeed protocols).\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSleek, low-profile, stylish design\u003c\/li\u003e\n\u003cli\u003eState-of-the-art thermistor technology for fast response\u003c\/li\u003e\n\u003cli\u003eIntegral communications and built in device-type identification\u003c\/li\u003e\n\u003cli\u003eBuilt-in tamper resistant feature\u003c\/li\u003e\n\u003cli\u003eExpanded color options including white, ivory and black (color kit)\u003c\/li\u003e\n\u003cli\u003eBuilt-in functional test switch activated by external magnet\u003c\/li\u003e\n\u003cli\u003eTwo-wire SLC loop connection\u003c\/li\u003e\n\u003cli\u003eUnit uses base for wiring\u003c\/li\u003e\n\u003cli\u003eAddressable by device\u003cbr\u003eCompatible with addressable manual fire alarm boxes, such as the \u003ca href=\"https:\/\/thefirealarmsupplier.com\/products\/fire-lite-bg-12lx-dual-action-pull-station\"\u003e\u003cstrong\u003eFire Lite BG-12lx\u003c\/strong\u003e\u003c\/a\u003e, to provide manual activation capabilities within the same SLC loop.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fire-Lite","offers":[{"title":"Default Title","offer_id":43132870557920,"sku":"H365","price":81.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/fire-lite-heat-detectors-default-title-fire-lite-h365-addressable-heat-detector-135-f-fixed-thermal-sensor-31896801411296.jpg?v=1763277726"},{"product_id":"fire-lite-h365-iv-addressable-heat-detector-ivory","title":"Fire-Lite H365-IV Addressable Heat Detector Ivory","description":"\u003ch2\u003eFire-Lite H365-IV Addressable Heat Detector, Ivory, Clip and Litespeed, Includes Base\u003c\/h2\u003e","brand":"Fire-Lite","offers":[{"title":"Default Title","offer_id":43132871737568,"sku":"H365-IV","price":190.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/fire-lite-heat-detectors-default-title-fire-lite-h365-iv-addressable-heat-detector-ivory-31896802230496.jpg?v=1763277740"},{"product_id":"fire-lite-h365r-addressable-heat-detector","title":"Fire-Lite H365R Addressable Heat Detector","description":"\u003ch2\u003eFire-Lite H365R Addressable Heat Detector W\/Rate-Of-Rise Thermal Sensor, White, Litespeed Only, Includes Base\u003c\/h2\u003e","brand":"Fire-Lite","offers":[{"title":"Default Title","offer_id":43132871770336,"sku":"H365R","price":83.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/fire-lite-heat-detectors-default-title-fire-lite-h365r-addressable-heat-detector-31896801607904.jpg?v=1763277767"},{"product_id":"fire-lite-h365r-iv-addressable-heat-detector-ivory","title":"Fire-Lite H365R-IV Addressable Heat Detector Ivory","description":"\u003ch2\u003eFire-Lite H365R-IV Addressable Heat Detector W\/Rate-Of-Rise Thermal Sensor, Ivory, Clip and Litespeed, Includes Base\u003c\/h2\u003e","brand":"Fire-Lite","offers":[{"title":"Default Title","offer_id":43132872032480,"sku":"H365R-IV","price":182.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/products\/fire-lite-heat-detectors-default-title-fire-lite-h365r-iv-addressable-heat-detector-ivory-31896801214688.jpg?v=1763277780"},{"product_id":"fire-lite-h365ht-addressable-heat-detector","title":"Fire-Lite H365HT Addressable Heat Detector Includes Base","description":"\u003ch2\u003eFire-Lite H365HT Addressable Heat Detector, Low-Profile Intelligent 190°F Fixed Thermal Sensor and LiteSpeed Only, White\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fire-Lite","offers":[{"title":"Default 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