--- product_id: 427074323 title: "Optical Smoke Alarm with 5 Year Replaceable Batteries, FA6615-R (ST-625 replacement, new gen)" brand: "fireangel" price: "€ 50.10" currency: EUR in_stock: true category: "Fire Angel" url: https://www.desertcart.be/products/427074323-optical-smoke-alarm-with-5-year-replaceable-batteries-fa6615-r store_origin: BE region: Belgium --- # 5-year replaceable AA batteries included Sleep easy feature silences low battery alerts for 8 hours Optical sensing tech for rapid smoke detection Optical Smoke Alarm with 5 Year Replaceable Batteries, FA6615-R (ST-625 replacement, new gen) **Brand:** fireangel **Price:** € 50.10 **Availability:** ✅ In Stock ## Summary > 🚨 Stay ahead of danger with FireAngel’s next-gen silent guardian! ## Quick Answers - **What is this?** Optical Smoke Alarm with 5 Year Replaceable Batteries, FA6615-R (ST-625 replacement, new gen) by fireangel - **How much does it cost?** € 50.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/427074323-optical-smoke-alarm-with-5-year-replaceable-batteries-fa6615-r) ## 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 - • **Quiet Confidence:** Test your alarm without disturbing your household or neighbors thanks to the silent test function. - • **Seamless Upgrade:** Direct swap for FireAngel ST-625 baseplate or compatible with ST-622, ST-620, and ST-750 models. - • **Trusted Longevity:** Backed by rigorous UK testing and a 5-year manufacturer’s warranty for peace of mind. - • **Swift Smoke Detection:** Optical sensor reacts instantly to slow-burning fires, giving you crucial extra seconds. - • **Effortless Battery Management:** Replaceable AA batteries last 5 years, with low battery warnings and an 8-hour snooze mode. ## Overview The FireAngel Optical Smoke Alarm FA6615-R offers advanced photoelectric smoke detection with rapid response to slow-burning fires. Designed as a direct replacement for popular FireAngel models, it features 5-year replaceable AA batteries, a quiet test function, and an innovative sleep easy mode to silence low battery alerts temporarily. Engineered and tested in the UK, it comes with a 5-year warranty, ensuring reliable, long-lasting home protection for England and Wales. ## Description FireAngel Smoke Alarms are designed in-house at our Midlands based development centre and have been rigorously tested to ensure unrivalled quality and longevity. Each product is packed full of trusted technology, with a sleek and polished design to fit seamlessly into your home. What alarm network do I need to protect my family and home? FireAngel have multiple product and installation options to suit all requirements. First, decide whether you require mains powered or battery powered units (or a combination of both), then consider the guidelines for fire detection that apply in your local area, using regulations such as Building Regulations or the guidance in BS5839-6, and consider your property type; whether that be private owned, rented, build, renovated etc. The advice below is purely provided for practice in England and Wales and should not be used independently. Smoke Alarms: To offer ultimate protection we advise a smoke alarm within the circulation area of each floor of the property, as well as within the main habitable areas such as bedrooms and living room. It’s important to remember that the sensors in all smoke alarms deteriorate after time, at FireAngel we recommend that smoke alarms are replaced every 10 years. Heat Alarms (Kitchen Alarms): Heat alarms are the only alarm suitable for use within the kitchen as they’re not affected by cooking fumes like traditional smoke alarms. Almost half of fires start in the kitchen, with cooking and faulty white goods (fridges and tumble driers) being the main causes. We recommend a heat alarm is fitted in the kitchen, but you can also fit additional heat alarms in the garage and loft to protect these areas. Carbon Monoxide (CO) Alarms: A Carbon Monoxide detector is the only way to be alerted to a carbon monoxide leak; it can’t be smelt, tasted or seen so it’s impossible for human senses to detect. Known as the ‘Silent Killer’, carbon monoxide (CO) occurs when fuels burn incompletely, with common sources being boilers, gas fires and hobs and solid fuel burners. However, carbon monoxide can also pass through walls, so you would also be at risk if a neighbouring property had a leak. We recommend a CO alarm is installed between 1m and 3m away from each fuel-burning appliance, as well as installing additional units in areas such as living rooms and bedrooms where you spend most time whilst at home. For homes in Scotland please see the Fire Angel website, or local government website for full guidance or review the Fire Angel Pro Connected product range as, when installed following the guidance, the Fire Angel Pro Connected alarms are compliant with Scottish Fire and CO Laws due February 2022. The FA6615-R is not suitable for installation in Scottish homes under the new guidance. All Fire Angel alarms are independently tested to EN14604:2005+AC2008 (Smoke Alarms). ## Features - The perfect replacement for FireAngel ST-625 model with a simple swap of the baseplates, or for ST-622, ST-620 and ST-750 models using the existing baseplate - With optical sensing technology smoke is rapidly detected as it enters the alarm chamber, for a quick reaction to slow burning fires - The alarm is supplied with 2 x AA batteries which can be replaced upon hearing the low battery warning, it is recommended you replace the alarm after 10 years - Featuring a quiet test function which means you're less likely to wake up loved ones or disturb the neighbours when testing your alarms - Give yourself vital time to replace the batteries in your alarm by silencing low battery warnings for 8 hours using the sleep easy feature.Suitable for homes in England and Wales. Not suitable for Scottish homes under the new regulations.FireAngel alarms are rigorously tested to ensure unrivalled quality and longevity and come with a 5 year manufacturer's warranty for peace of mind ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09WB3LWSX | | Alarm | Smoke Alarm | | Best Sellers Rank | #18,813 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #21 in Smoke Alarms | | Brand | FireAngel | | Built-In Media | 1 x Baseplate, 1 x Instruction Manual, 1 x Optical Smoke Alarm, 2 x AA Batteries | | Color | White | | Customer Reviews | 4.4 4.4 out of 5 stars (792) | | Enclosure Material | Plastic | | Item Dimensions D x W x H | 10D x 10W x 10H millimeters | | Item Type Name | Smoke Alarm | | Item Weight | 185 Grams | | Manufacturer | FireAngel | | Mfr Part Number | FA6615-R | | Model Number | FA6615-R | | Number of Items | 1 | | Power Source | Battery Powered | | Product Style | New Gen Alarm | | Sensor Type | Photoelectric | | UPC | 816317006259 | ## Product Details - **Brand:** FireAngel - **Colour:** White - **Power source:** Battery Powered - **Product dimensions:** 10D x 10W x 10H millimeters - **Style:** New Gen Alarm ## Images ![Optical Smoke Alarm with 5 Year Replaceable Batteries, FA6615-R (ST-625 replacement, new gen) - Image 1](https://m.media-amazon.com/images/I/51K5NsMcb0L.jpg) ## Available Options This product comes in different **Style** options. ## Frequently Bought Together - FireAngel Optical Smoke Alarm with 5 Year Replaceable Batteries, FA6615-R (ST-625 replacement, new gen) - 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.be/products/427074323-optical-smoke-alarm-with-5-year-replaceable-batteries-fa6615-r](https://www.desertcart.be/products/427074323-optical-smoke-alarm-with-5-year-replaceable-batteries-fa6615-r) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-10-22*