{"product_id":"kidde-kf21r-mains-optical-smoke-alarm-with-rechargeable-lithium-backup","title":"Kidde KF21R Mains Optical Smoke Alarm With Rechargeable Lithium Backup","description":"\u003cdiv style=\"font-family:inherit;color:#1f2329;line-height:1.65;max-width:960px;margin:0 auto\"\u003e\n\u003cdiv style=\"background:#1f2329;color:#fff;border-radius:10px;padding:22px 24px;margin-bottom:22px;border-bottom:5px solid #e8381b\"\u003e\n\u003cdiv style=\"font-size:12px;letter-spacing:2px;text-transform:uppercase;color:#ff8a70;font-weight:700;margin-bottom:6px\"\u003eKidde • Smoke Alarms\u003c\/div\u003e\n\u003cdiv style=\"font-size:24px;font-weight:800;line-height:1.25;margin-bottom:10px\"\u003eKidde KF21R Mains Optical Smoke Alarm With Rechargeable Lithium Backup\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px;color:#d6d9de\"\u003eMains powered optical smoke alarm from the Kidde Sentry range, with a sealed-in rechargeable lithium battery backup that never needs replacing.\u003c\/div\u003e\n\u003cdiv style=\"margin-top:14px\"\u003e\n\u003cspan style=\"display:inline-block;background:#e8381b;color:#fff;font-size:13px;font-weight:700;border-radius:20px;padding:5px 12px;margin:4px 6px 0 0\"\u003eMains Powered\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#e8381b;color:#fff;font-size:13px;font-weight:700;border-radius:20px;padding:5px 12px;margin:4px 6px 0 0\"\u003eRechargeable Backup\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#e8381b;color:#fff;font-size:13px;font-weight:700;border-radius:20px;padding:5px 12px;margin:4px 6px 0 0\"\u003eInterlinkable\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#e8381b;color:#fff;font-size:13px;font-weight:700;border-radius:20px;padding:5px 12px;margin:4px 6px 0 0\"\u003eIn Stock\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:16px;margin:0 0 16px\"\u003eThe Kidde KF21R Sentry is a mains powered optical smoke alarm built for homes, rentals and new builds. The optical sensor is especially good at picking up slow, smouldering fires such as those started by soft furnishings, electrical faults or cigarettes.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;margin:0 0 16px\"\u003eIf the mains supply fails, the sealed rechargeable lithium cell keeps the alarm working, so there are no batteries to change over its life. It can be interlinked with up to 23 compatible Kidde FIREX smoke, heat and carbon monoxide alarms so every alarm sounds together, and the Quick-Fit slide-on base makes installation and replacement fast and tidy.\u003c\/p\u003e\n\u003ch2 style=\"font-size:19px;font-weight:800;margin:6px 0 12px;color:#1f2329\"\u003eKey Features\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 24px;padding-left:20px;font-size:15px\"\u003e\n\u003cli style=\"margin-bottom:4px\"\u003eOptical sensor - ideal for slow, smouldering fires\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px\"\u003e230V mains powered with sealed rechargeable lithium battery backup\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px\"\u003eInterconnect with up to 23 compatible Kidde FIREX alarms\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px\"\u003eQuick-Fit slide-on base for fast, tool-free fitting of the head\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px\"\u003eIntegrated cable management and 150mm flared base for neat retrofits\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px\"\u003eTest\/hush button to silence nuisance alarms\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px\"\u003eSuitable for landlords, housing and new build installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size:19px;font-weight:800;margin:6px 0 12px;color:#1f2329\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;border:1px solid #e4e6ea;margin-bottom:24px\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"background:#1f2329;color:#fff;text-align:left;padding:10px 12px;font-size:14px\"\u003eKidde KF21R Mains Optical Smoke Alarm With Rechargeable Lithium Backup\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003eKidde\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003eKF21R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eEAN\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003e0047871340238\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003eSmoke Alarms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eRange\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003eKidde Sentry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eSensor\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003eOptical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003e230V AC mains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eBackup\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003eSealed rechargeable lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eInterconnect\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003eUp to 23 compatible Kidde FIREX devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eMounting\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003eCeiling, Quick-Fit base included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f8fa\"\u003e\n\u003ctd style=\"padding:9px 12px;width:40%;font-weight:700;vertical-align:top\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px\"\u003e0.26 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#f7f8fa;border-radius:10px;padding:16px 18px;margin-bottom:24px\"\u003e\n\u003ch2 style=\"font-size:16px;font-weight:800;margin:0 0 4px\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cdiv style=\"font-size:14px;color:#4a4f57\"\u003e1 x Kidde KF21R Mains Optical Smoke Alarm With Rechargeable Lithium Backup\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:4px solid #e8381b;background:#fff5f2;border-radius:6px;padding:12px 16px;margin-bottom:24px\"\u003e\n\u003ch3 style=\"font-size:15px;font-weight:800;margin:0 0 4px\"\u003eGood To Know\u003c\/h3\u003e\n\u003cdiv style=\"font-size:14px;color:#4a4f57\"\u003eMains smoke alarms should be installed by a qualified electrician in line with BS 5839-6 and current wiring regulations (BS 7671).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size:19px;font-weight:800;margin:6px 0 12px;color:#1f2329\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 style=\"font-size:15px;font-weight:800;margin:12px 0 4px\"\u003eWhere should a smoke alarm be fitted?\u003c\/h3\u003e\n\u003cp style=\"font-size:14px;color:#4a4f57;margin:0 0 8px\"\u003eFit optical smoke alarms in hallways, landings and living areas. Use a heat alarm such as the Kidde KF31R in kitchens and garages where smoke or steam can cause false alarms.\u003c\/p\u003e\n\u003ch3 style=\"font-size:15px;font-weight:800;margin:12px 0 4px\"\u003eDo I need to change the battery?\u003c\/h3\u003e\n\u003cp style=\"font-size:14px;color:#4a4f57;margin:0 0 8px\"\u003eNo. The KF21R uses a sealed rechargeable lithium cell that is charged by the mains supply, so there is no battery to replace.\u003c\/p\u003e\n\u003ch3 style=\"font-size:15px;font-weight:800;margin:12px 0 4px\"\u003eHow quickly will my order be dispatched?\u003c\/h3\u003e\n\u003cp style=\"font-size:14px;color:#4a4f57;margin:0 0 8px\"\u003eThis item is in stock and is usually dispatched within 1 working day. Orders over £40 ship free, and orders over 2kg go free Next Day.\u003c\/p\u003e\n\u003ch3 style=\"font-size:15px;font-weight:800;margin:12px 0 4px\"\u003eWhat is the manufacturer part number?\u003c\/h3\u003e\n\u003cp style=\"font-size:14px;color:#4a4f57;margin:0 0 8px\"\u003eThis is the Kidde KF21R (EAN 0047871340238).\u003c\/p\u003e\n\u003cdiv style=\"margin-bottom:20px\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px\"\u003e\n\u003cdiv style=\"flex:1 1 200px;background:#1f2329;color:#fff;border-radius:10px;padding:14px;text-align:center\"\u003e\n\u003cdiv style=\"font-weight:800;font-size:14px\"\u003eFree UK Delivery\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#c9ccd1\"\u003eOn orders over £40\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 200px;background:#1f2329;color:#fff;border-radius:10px;padding:14px;text-align:center\"\u003e\n\u003cdiv style=\"font-weight:800;font-size:14px\"\u003eFree Next Day\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#c9ccd1\"\u003eOn orders over 2kg\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 200px;background:#1f2329;color:#fff;border-radius:10px;padding:14px;text-align:center\"\u003e\n\u003cdiv style=\"font-weight:800;font-size:14px\"\u003eTrade Quantities\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#c9ccd1\"\u003eSent from the UK\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 200px;background:#1f2329;color:#fff;border-radius:10px;padding:14px;text-align:center\"\u003e\n\u003cdiv style=\"font-weight:800;font-size:14px\"\u003eNo-Quibble Returns\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#c9ccd1\"\u003eJust send it back\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Kidde","offers":[{"title":"Default Title","offer_id":58461050306942,"sku":"B2B-KF21R","price":53.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0243\/9069\/7024\/files\/width_1920_height_1920_6a0c9bd0-cbd3-4dcf-aed0-450538d71388.png?v=1794589306","url":"https:\/\/fixingking.com\/products\/kidde-kf21r-mains-optical-smoke-alarm-with-rechargeable-lithium-backup","provider":"Fixing King","version":"1.0","type":"link"}