{"product_id":"atd-rl2f-gamewell-fci-velociti-addressable-thermal-sensor-135f-fixed-rate-of-rise","title":"ATD-RL2F | Gamewell-FCI Velociti Addressable Thermal Sensor, 135°F Fixed \u0026 Rate-of-Rise","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Gamewell-FCI ATD-RL2F Addressable Thermal Sensor is an intelligent heat detector from the Velociti Series designed to provide dependable fixed-temperature and rate-of-rise heat detection. Rated at 135°F (57°C), it offers rapid response to both steady and sudden temperature increases.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 343.095px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eGamewell-FCI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eFire Alarm Equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eATD-RL2F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eAddressable Thermal Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eVelociti Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eDetection Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eFixed temperature and rate-of-rise (ROR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eThermal Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003e135°F (57°C) fixed temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eProgramming Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eRotary address dials\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eCommunication Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eVelociti analog addressable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003e15–32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eStandby Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003e300 µA (average)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eAlarm Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003e6.5 mA (LED on)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eIvory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eFlame-retardant plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eMounting Base\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eB210LP or equivalent plug-in base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003e32°F to 100°F (0°C to 38°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eHumidity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eUp to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003eUL Listed; NFPA 72 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003e2.10\" H × 4.10\" W × 4.10\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.1193%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.6614%;\"\u003e0.2 lb (0.09 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About ATD-RL2F\u003c\/h4\u003e\n\u003cp\u003eThe ATD-RL2F is a Velociti Series addressable thermal sensor developed by Gamewell-FCI for use with compatible analog fire alarm control panels. It combines fixed-temperature and rate-of-rise thermal sensing technologies to deliver early detection of rapid heat changes associated with fire conditions. Using rotary dials for addressing, the sensor communicates precise temperature and alarm data digitally through the panel’s signaling line circuit (SLC). Its low-profile, ivory-colored housing provides a clean, unobtrusive appearance suitable for commercial and institutional installations. Although discontinued by the manufacturer, the ATD-RL2F remains a key component for maintaining existing Velociti-based fire detection systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual Detection Technology: Combines fixed-temperature and rate-of-rise sensing for comprehensive heat detection.\u003c\/li\u003e\n\u003cli\u003eThermal Rating: Activates at 135°F (57°C) for reliable fire response in diverse environments.\u003c\/li\u003e\n\u003cli\u003eAddressable Communication: Uses Velociti Series protocol for precise sensor identification and control.\u003c\/li\u003e\n\u003cli\u003eRotary Dial Programming: Simplifies device addressing and setup.\u003c\/li\u003e\n\u003cli\u003eCompact, Low-Profile Design: Blends seamlessly into ceilings while maintaining full functionality.\u003c\/li\u003e\n\u003cli\u003eIvory Housing: Aesthetic finish suited for commercial or institutional installations.\u003c\/li\u003e\n\u003cli\u003eDiscontinued Model Support: Fully compatible with legacy Gamewell-FCI Velociti fire alarm systems.\u003c\/li\u003e\n\u003cli\u003eUL\/NFPA Compliant: Meets fire safety standards for thermal detection performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe ATD-RL2F delivers the reliability and precision required for addressable heat detection in both new and legacy Gamewell-FCI fire protection systems.\u003c\/p\u003e","brand":"Gamewell-FCI","offers":[{"title":"Default Title","offer_id":49105150574848,"sku":"ATD-RL2F","price":374.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/file_7_75_1_1_1_1.png?v=1785541370","url":"https:\/\/alotechparts.com\/products\/atd-rl2f-gamewell-fci-velociti-addressable-thermal-sensor-135f-fixed-rate-of-rise","provider":"Alo Tech Solutions","version":"1.0","type":"link"}