{"product_id":"kidde-sentry-2x-kf21r-optical-smoke-1x-kf31r-heat-alarm-kit-mains-ac-sealed-in-rechargeable-battery-back-up-c-w-quick-fit-base","title":"Kidde Sentry 2x KF21R Optical Smoke \u0026 1x KF31R Heat Alarm Kit Mains Powered with Sealed-In Rechargeable Battery Back-Up c\/w Quick Fit Base","description":"\u003ch1\u003eKidde Sentry 2x KF21R Optical Smoke \u0026amp; 1x KF31R Heat Alarm Kit with Rechargeable Lithium Battery Back-Up\u003c\/h1\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eKidde Sentry Alarm Kit\u003c\/strong\u003e combines \u003cstrong\u003etwo KF21R Optical Smoke Alarms\u003c\/strong\u003e and \u003cstrong\u003eone KF31R Heat Alarm\u003c\/strong\u003e to provide dependable whole-home fire detection for residential properties. Designed for mains-powered installation, each alarm features a sealed rechargeable lithium battery back-up and can be interconnected with up to 23 compatible Kidde FIREX alarms.\u003c\/p\u003e\n\n\u003cp\u003eThis advanced alarm system delivers reliable smoke and heat detection across hallways, bedrooms, living spaces, kitchens and loft areas, helping properties comply with UK Building Regulations while enhancing occupant safety.\u003c\/p\u003e\n\n\u003cp\u003eEach alarm is supplied with Kidde’s \u003cstrong\u003eQuick-Fit Slide-On Base\u003c\/strong\u003e for faster installation, while integrated cable management ensures neat and secure wiring. The 150mm flared base plate also provides a clean finish during retrofit installations.\u003c\/p\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e2 x Kidde KF21R Optical Smoke Alarms\u003c\/li\u003e\n\u003cli\u003e1 x Kidde KF31R Heat Alarm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKF21R Optical Smoke Alarm Features\u003c\/h2\u003e\n\n\u003cp\u003eThe Kidde KF21R optical smoke alarm is designed to detect slow, smouldering fires caused by electrical faults, furniture or cigarettes. Ideal for escape routes and living areas, the optical sensor provides dependable early warning protection.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eMains-powered optical smoke alarm with sealed rechargeable lithium battery back-up\u003c\/li\u003e\n\u003cli\u003eOptical sensor with dust compensation and bug screen\u003c\/li\u003e\n\u003cli\u003eInterconnects with up to 23 Kidde FIREX alarms\u003c\/li\u003e\n\u003cli\u003eAlarm memory identifies the activated alarm\u003c\/li\u003e\n\u003cli\u003eCombined Test\/Hush button\u003c\/li\u003e\n\u003cli\u003eAuto reset after activation\u003c\/li\u003e\n\u003cli\u003eTamper-resistant locking mechanism\u003c\/li\u003e\n\u003cli\u003eSuitable for hallways, bedrooms, lofts and living rooms\u003c\/li\u003e\n\u003cli\u003eBSI certified to BS EN14604:2005\u003c\/li\u003e\n\u003cli\u003e10-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKF31R Heat Alarm Features\u003c\/h2\u003e\n\n\u003cp\u003eThe Kidde KF31R heat alarm is designed for kitchens, garages and loft spaces where smoke alarms may be unsuitable due to cooking fumes, dust or steam. The thermistor heat sensor provides reliable heat detection while reducing nuisance alarms.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eMains-powered heat alarm with sealed rechargeable lithium battery back-up\u003c\/li\u003e\n\u003cli\u003eThermistor heat sensor for reliable heat detection\u003c\/li\u003e\n\u003cli\u003eInterconnects with up to 23 Kidde FIREX alarms\u003c\/li\u003e\n\u003cli\u003eAlarm memory identifies the activated alarm\u003c\/li\u003e\n\u003cli\u003eCombined Test\/Hush button\u003c\/li\u003e\n\u003cli\u003eAuto reset after activation\u003c\/li\u003e\n\u003cli\u003eTamper-resistant locking mechanism\u003c\/li\u003e\n\u003cli\u003eIdeal for kitchens, garages and loft spaces\u003c\/li\u003e\n\u003cli\u003eBSI certified to BS 5446 Part 2:2003\u003c\/li\u003e\n\u003cli\u003e10-year warranty including battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eComplete smoke and heat alarm system for residential properties\u003c\/li\u003e\n\u003cli\u003eSealed rechargeable lithium battery back-up for maintenance-free protection\u003c\/li\u003e\n\u003cli\u003eInterlinked alarms provide whole-home warning when danger is detected\u003c\/li\u003e\n\u003cli\u003eQuick-Fit bases for fast and efficient installation\u003c\/li\u003e\n\u003cli\u003eIntegrated cable management for neat wiring\u003c\/li\u003e\n\u003cli\u003eSuitable for compliance with UK Building Regulations\u003c\/li\u003e\n\u003cli\u003eGrade D1 domestic fire alarm system solution\u003c\/li\u003e\n\u003cli\u003eFully compatible with Kidde FIREX smoke, heat and CO alarms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ch3\u003eKF21R Optical Smoke Alarm\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KF21R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 230V mains with sealed rechargeable lithium battery back-up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Type:\u003c\/strong\u003e Optical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm Volume:\u003c\/strong\u003e 85dB minimum at 3 metres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 150mm x 150mm x 53mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 260g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10°C to +40°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10 Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKF31R Heat Alarm\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KF31R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 230V mains with sealed rechargeable lithium battery back-up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Type:\u003c\/strong\u003e Thermistor heat sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm Volume:\u003c\/strong\u003e 85dB minimum at 3 metres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 150mm x 66mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 245g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10°C to +40°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10 Years including battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e Alarms are supplied individually within the kit. Installation should be carried out by a qualified electrician.\u003c\/p\u003e\n\n\u003ch2\u003eDownloads\u003c\/h2\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eKF21R Data Sheet:\u003c\/strong\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/a.mktgcdn.com\/f\/4139856\/N1qtN-KTPiGxV4FCNukEVy8KrHFuo3kFjmynmZb3DAM.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload KF21R Data Sheet\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eKF31R Data Sheet:\u003c\/strong\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/a.mktgcdn.com\/f\/4139856\/xNd9FoIq-vcqzIQOFyRYOdCzaM-sDYjr6hjJWbs8s7w.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload KF31R Data Sheet\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eKF21R Instruction Manual:\u003c\/strong\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/a.mktgcdn.com\/f\/4139856\/5E_Cqq3RopAzls8aPoJmvHQMeuuRxjlrsjQeILwJrPw.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload KF21R Instruction Manual\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eKF31R Instruction Manual:\u003c\/strong\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/a.mktgcdn.com\/f\/4139856\/QtetLpZzr0zryso8Up1OCpp-nxIUUER8nD1yW75h6Xg.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload KF31R Instruction Manual\u003c\/a\u003e\n\u003c\/p\u003e","brand":"Kidde","offers":[{"title":"Default Title","offer_id":58118876922240,"sku":"KF21Rx2+KF31R","price":152.21,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/2349\/2557\/files\/KF21x2_KF31_Shopify.jpg?v=1779203402","url":"https:\/\/westbasedirect.com\/products\/kidde-sentry-2x-kf21r-optical-smoke-1x-kf31r-heat-alarm-kit-mains-ac-sealed-in-rechargeable-battery-back-up-c-w-quick-fit-base","provider":"westbasedirect.com","version":"1.0","type":"link"}