--- product_id: 422676184 title: "FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White" brand: "fireangel" price: "¥12801" currency: JPY in_stock: true reviews_count: 9 category: "Fireangel" url: https://www.desertcart.jp/products/422676184-fireangel-optical-smoke-alarm-2-pack-fa6620-10-year-battery store_origin: JP region: Japan --- # 10-Year Battery Life Fewer False Alarms Easy Installation FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White **Brand:** fireangel **Price:** ¥12801 **Availability:** ✅ In Stock ## Summary > 🔥 Stay Safe, Stay Smart! 🔥 ## Quick Answers - **What is this?** FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White by fireangel - **How much does it cost?** ¥12801 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/422676184-fireangel-optical-smoke-alarm-2-pack-fa6620-10-year-battery) ## Best For - fireangel enthusiasts ## Why This Product - Trusted fireangel brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Install in minutes with a simple twist and secure mechanism—no hassle, just safety. - • **Long-lasting Protection:** Equipped with a sealed 10-year battery, ensuring your home is protected for a decade. - • **No More Nuisance Alerts:** Say goodbye to false alarms from cooking fumes and enjoy peace of mind. - • **Certified Safety Assurance:** Trust in CE and UKCA certified alarms, backed by a 5-year warranty for your peace of mind. - • **Smoke Detection Revolutionized:** Experience rapid response to slow-burning fires with advanced optical sensing technology. ## Overview The Fireangel Optical Smoke Alarm 2-Pack (FA6620) features advanced optical sensing technology for quick detection of slow-burning fires, a 10-year sealed battery for long-lasting protection, and easy installation. With fewer false alarms and certified safety standards, this smoke alarm is the perfect addition to any home. ## Description From the manufacturer Fire Safety At FireAngel, we're dedicated to protecting and improving our customers’ lives by creating innovative, cutting-edge fire safety technology that is both practical and accessible. The FireAngel FA6620-R Optical Smoke Alarm has been designed to make protecting your home simple, with an easy installation process, fewer false alarms, and rigorous testing. OPTICAL SENSOR: The FA6620’s optical smoke-sensing chamber works by 'seeing' smoke as it enters the alarm, making it ideal for slow-burning fires that produce thick, white smoke. Whilst it is less prone to false alarms from cooking fumes, it can still be triggered by steam. Not suitable for kitchens or bathrooms. SEALED-FOR-LIFE BATTERY: The FA6620 smoke detector has a 10-year, tamper-proof battery that will last the lifetime of the alarm. A red operational LED will flash, and an audible beep will alert you when the device needs replacing. FOR DOMESTIC PREMISES ONLY: Suitable for domestic premises, including leisure accommodation vehicles (mobile homes and caravans). Not suitable for commercial properties. Designed to replace the ST-622 and ST-620 smoke alarms, the baseplate is identical to the ST-622, making replacements quick and easy. FireAngel: Smarter solutions for safer homes. Early Warning System Smoke alarms provide an essential early warning system for potential house fires. The FA6620 smoke alarm holds both CE and UKCA marks, has been rigorously third-party tested, and is certified to BS EN 14604:2005+AC:2008. Sleep Easy To test your device, press the large test button. A loud, high-pitched sound will verify that the alarm is functioning correctly. In a known false alarm, press and hold the test button to temporarily silence the alarm for 10 minutes. If a low battery alert occurs at night, you can silence the smoke detector for 8 hours by pressing the test button. Safety Guidelines The FA6620 is suitable for the landing, hallway, bedroom, living room and dining room. Smoke alarms should be sited at least 300 mm from light fittings and walls, and ideally as central as possible in the room. Avoid installing near kitchens or bathrooms. Safety First What should I do if my smoke alarm sounds? In the event of a smoke alarm sounding STAY CALM: Don’t panic, take immediate action to ensure your own safety and that of others. CHECK FOR SMOKE OR FIRE: Look for visible smoke or flames. If you see either, evacuate immediately. EVACUATE: Leave the premises as quickly as possible using the nearest exit. Do not use lifts. Take the stairs. Ensure everyone is accounted for and exits safely. CLOSE THE DOORS: Close doors behind you as you leave to slow the spread of smoke. CALL 999: Once outside, call the emergency services, providing the operator with your location and any details about the fire. DO NOT RE-ENTER: Do not go back into the building until it has been declared safe by the fire service. About Us We pride ourselves on product reliability and quality. Since 1998, we’ve deployed over 80 million safety products, protecting over 25 million homes nationwide. Sustainability We’re committed to reducing our impact on the planet; that’s why we've reduced the plastic in our packaging and have unique products that use less energy. The FireAngel range In addition to our smoke alarms for the home, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard fire, carbon monoxide (CO), and heat alarms. Review: Not working at all, 10 years battery...I had to get expired one - This one I received today. It's working correctly. This is what I needed. Happy now Review: Excellent smoke alarms - FireAngel quality you can trust - I'm a loyal FireAngel customer and these smoke alarms maintain the brand's excellent reputation. The quality and reliability are second to none, which is exactly what you want from a safety device. Installation is straightforward and they're up and running quickly. The optical sensor technology works perfectly - sensitive enough to detect real smoke threats but smart enough to ignore false alarms like vaping, which is a huge advantage over cheaper detectors. The alarm tone strikes the perfect balance - loud enough to wake you and alert the household, but not so overwhelming that it's painful. There's no annoying constant beeping during normal operation either. The 10-year battery life is fantastic - set and forget peace of mind. The white finish looks clean and unobtrusive on the ceiling. Pro tip: pair these with magnetic mounting pads (as mentioned in my other reviews) for incredibly easy installation without drilling. These are premium smoke alarms that justify the price with superior performance and reliability. When it comes to fire safety, I wouldn't trust anything else. Highly recommended for anyone serious about home safety. ## Features - SMOKE DETECTORS FOR HOME: The optical smoke alarm makes protecting your home simple. Its optical sensing chamber 'sees' smoke as it enters the alarm, providing a fast response to slow burning fires with thick white smoke. - FEWER NUISANCE ALARMS: The advanced optical sensor ensures the FireAngel smoke alarm is less prone to false alerts from cooking fumes. Avoid placing near bathrooms or kitchens. - 10-YEAR BATTERY: Each smoke alarm is fitted with a 10-year sealed battery, offering protection for the lifetime of the device without needing to change the batteries. - EASY INSTALLATION: Fitted with a removable base plate, secure it to the ceiling using the screws provided. Push and twist to secure the device. The base plate is identical to the ST622, making replacements quick and easy. - SAFETY ASSURED: The FA6620 smoke alarm holds CE and UKCA marks and is certified to BS EN 14604:2005+AC:2008. Suitable for domestic premises, including leisure accommodation vehicles, it comes with a 5-year warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09W9WXBZL | | Alarm | Smoke Alarm | | Best Sellers Rank | 50 in DIY & Tools ( See Top 100 in DIY & Tools ) 1 in Smoke Alarms | | Brand | Fireangel | | Colour | White | | Country of Origin | China | | Customer Reviews | 4.4 out of 5 stars 12,522 Reviews | | Included Components | 1 x Instruction Manual, 2 x Baseplate, 2 x Optical Smoke Alarms complete with Sealed Batteries | | Item Dimensions D x W x H | 11.8D x 11.8W x 3.2H centimetres | | Item Type Name | Smoke Alarm | | Item Weight | 138 Grams | | Item weight | 138 Grams | | Manufacturer | FireAngel | | Manufacturer Warranty Description | 5 year manufacturer's warranty. | | Material | Plastic | | Model Number | FA6620-R-T2 | | Number of Items | 2 | | Part Number | FA6620-R-T2 | | Power source | Battery Powered | | Product Style | New Gen Twin Pack | | Product dimensions | 11.8D x 11.8W x 3.2H centimetres | | Sensor Type | Photoelectric | | Style | New Gen Twin Pack | | UPC | 816317006327 | | Unit Count | 2.0 count | ## Product Details - **Brand:** Fireangel - **Style:** New Gen Twin Pack - **Power source:** Battery Powered - **Colour:** White - **Product dimensions:** 11.8D x 11.8W x 3.2H centimetres - **Item weight:** 138 Grams - **Alarm:** Smoke Alarm - **Sensor type:** Photoelectric - **Material:** Plastic - **Number of items:** 1 ## Images ![FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White - Image 1](https://m.media-amazon.com/images/I/51uAIAFZJrL.jpg) ![FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White - Image 2](https://m.media-amazon.com/images/I/61UTdFZofyL.jpg) ![FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White - Image 3](https://m.media-amazon.com/images/I/61vNO+UIKDL.jpg) ![FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White - Image 4](https://m.media-amazon.com/images/I/61kAZNbj8xL.jpg) ![FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White - Image 5](https://m.media-amazon.com/images/I/61dFR6z9TIL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Will this fit the SO -610 base plate** A: My previous one was so-610 and I fitted the new one onto that base **Q: Will this alarm detect vape smoke** A: Generally no vaping will not trigger the smoke alarm, unless you purposely blow the vape into the alarm. This does depend how sensitive your alarm is though. Some smoke detectors are that sensitive that even a steam iron will set it off. **Q: Is it jog proof and will it read cd-r's?** A: It’s a smoke detector that fits securely to the house ceiling with no movement. Nothing to do with a cd-r involved in installation. **Q: Hi, will this work with 5GHz / full fibre broadband Wifi?** A: I don’t think so, as to my knowledge it’s not Wi-Fi enabled ## Customer Reviews ### ⭐⭐⭐⭐⭐ Not working at all, 10 years battery...I had to get expired one *by G***Y on 17 April 2026* This one I received today. It's working correctly. This is what I needed. Happy now ### ⭐⭐⭐⭐⭐ Excellent smoke alarms - FireAngel quality you can trust *by M***H on 15 September 2025* I'm a loyal FireAngel customer and these smoke alarms maintain the brand's excellent reputation. The quality and reliability are second to none, which is exactly what you want from a safety device. Installation is straightforward and they're up and running quickly. The optical sensor technology works perfectly - sensitive enough to detect real smoke threats but smart enough to ignore false alarms like vaping, which is a huge advantage over cheaper detectors. The alarm tone strikes the perfect balance - loud enough to wake you and alert the household, but not so overwhelming that it's painful. There's no annoying constant beeping during normal operation either. The 10-year battery life is fantastic - set and forget peace of mind. The white finish looks clean and unobtrusive on the ceiling. Pro tip: pair these with magnetic mounting pads (as mentioned in my other reviews) for incredibly easy installation without drilling. These are premium smoke alarms that justify the price with superior performance and reliability. When it comes to fire safety, I wouldn't trust anything else. Highly recommended for anyone serious about home safety. ### ⭐⭐⭐⭐ Works well value for money. *by M***O on 5 March 2026* Works well easy to fit, good quality and value for money. ## Frequently Bought Together - FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White - FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button - FireAngel Heat Alarm with 10 Year Sealed For Life Battery, FA6720-R (HT-630 replacement, new gen), White --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/422676184-fireangel-optical-smoke-alarm-2-pack-fa6620-10-year-battery](https://www.desertcart.jp/products/422676184-fireangel-optical-smoke-alarm-2-pack-fa6620-10-year-battery) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-06-17*