--- product_id: 86160751 title: "ST-622T Smoke Alarm, 2 Pack" brand: "fireangel" price: "€ 98.37" currency: EUR in_stock: true reviews_count: 9 category: "Fireangel" url: https://www.desertcart.be/products/86160751-st-622t-smoke-alarm-2-pack store_origin: BE region: Belgium --- # Toast-proof nuisance alarm reduction 10-year sealed lithium battery Thermoptek multi-sensor tech ST-622T Smoke Alarm, 2 Pack **Brand:** fireangel **Price:** € 98.37 **Availability:** ✅ In Stock ## Summary > 🚨 Stay ahead of danger with decade-long peace of mind! ## Quick Answers - **What is this?** ST-622T Smoke Alarm, 2 Pack by fireangel - **How much does it cost?** € 98.37 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/86160751-st-622t-smoke-alarm-2-pack) ## 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 - • **Decade-Long Power:** Sealed lithium battery lasts 10 years—install once, worry-free for a decade. - • **Smart Silence Mode:** Temporarily mute false alarms with a simple button press—perfect for burnt toast moments. - • **Trusted by Fire Pros:** Used by 90% of UK Fire & Rescue Services, ensuring professional-grade reliability. - • **Effortless Installation:** Quick twist-and-lock design with included screws and baseplates—safety made simple. - • **Dual-Action Fire Detection:** Thermoptek multi-sensor tech spots both fast flames & slow smoulders for ultimate home safety. ## Overview The FireAngel ST-622T Smoke Alarm 2-Pack features advanced Thermoptek multi-sensor technology combining optical and heat detection for rapid response to all fire types. With a sealed 10-year lithium battery, smart silence function, and toast-proof design to reduce nuisance alarms, it offers professional-grade safety trusted by UK Fire Services. Easy to install and maintain, this alarm ensures reliable protection and peace of mind for a full decade. ## Description From the manufacturer 10 Year Thermoptek Smoke Alarm ST-622 ST-622 Simple to install and easy to test and silence, the ST-622 smoke alarm is designed to alert the household to the presence of smoke and provide precious time to escape. Alarm Screws Baseplate Manual Using the sensing technology of choice for the UK's Fire and Rescue Service, the FireAngel ST-622 is a sealed 10 year battery powered Thermoptek smoke alarm with improved detection of slow-smouldering fires. It's handy "sleep-easy" function allows the smoke alarm to be temporarily silenced for 8 hours. Positioning : Bedroom | Living room | Hallway | Landing | Dining room Tamper-proof 10 year sealed battery powered alarm Thermoptek optical smoke sensor - Detects slow-smouldering fires Smart Silence - Silence false alarms Toast Proof - Reduces nuisance alarms Thermoptek Our unique technology - Thermoptek Multi-Sensor technology combines the very latest in optical sensing with a thermal enhancement. It constantly monitors for temperature change and if a sudden temperature rise is detected the sensitivity of the alarm is increased. Precision Multi-sensor Optical and heat detection technologies combine to increase the sensitivity of the alarm for a faster response. This provides a much faster reaction to both slow smouldering and fast-flaming fires in a single alarm. UK Fire And Rescue Services We are leading the way in fire safety with state of the art design and technology to deliver the most reliable, efficient and desirable home safety solutions, FireAngel products are used by over 90% of UK Fire and Rescue Services. Review: GREAT VALUE AND A FIRE SERVICE RECOMMENDED MAKE - Smoke detectors are there to save your life. They also have a lifespan of 10 years before they should be replaced. The last detectors we had were installed in the house in 1993 when it was built! These are easy to put up, two screws in the baseplate and then twist and lock the unit into place. It's really simple and even has instructions in the box. It has a burnt toast feature (you can switch it off for 10 minutes if you burn toast) and it's loud. A red light flashes every 45 seconds to tell you it is active. Test the device and you will find it wakes any hibernating grizzly. The battery life is 10 years, after which it should be replaced. Interestingly smoke detectors have 'use by' dates, always check. This one had a use by date of 10 years + 1 year so it was fresh from the factory. Incidentally, these can be found recommended on the Fire Service website. Good value for a pack of two. Review: All good. No issues - Very good Easy to install and a long battery life ## Features - Thermoptek multi-sensor rapidly detects fast flaming & slow smouldering fires - Smart silence - silence your smoke alarm by momentarily pressing the test button, Ideal for nuisance alarms - Toast proof - less prone to nuisance alarms from cooking fumes - Product life span: 10 year. Battery life: 10 year sealed for life Battery - Certified to BS EN14604: 2005 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00OTN2P3O | | Alarm | Audible | | Battery Average Life | 10 years | | Battery Type | Sealed Lithium Battery | | Best Sellers Rank | 27,957 in DIY & Tools ( See Top 100 in DIY & Tools ) 94 in Smoke Alarms | | Brand | Fireangel | | Colour | White | | Country of Origin | China | | Customer Reviews | 4.6 out of 5 stars 9,008 Reviews | | Global Trade Identification Number | 00816317001698, 00816317002961 | | Included Components | 2x Smoke Alarms + Base Plates, 4x Screws, 4x Rawl Plugs, 1x Instruction Manual | | Item Dimensions D x W x H | 3.4D x 13W x 13H centimetres | | Item Type Name | Smoke Alarm | | Item Weight | 310 Grams | | Item weight | 310 Grams | | Manufacturer | FireAngel Safety Technology Ltd | | Manufacturer Warranty Description | 5 years. | | Material | ABS | | Model Number | TST-620Q | | Number of Items | 2 | | Operating Humidity | Up to 90% RH non-condensing | | Part Number | TST-622Q | | Power source | Battery Powered | | Product Style | TST-622 | | Product dimensions | 3.4D x 13W x 13H centimetres | | Sensor Type | Photoelectric | | Style | TST-622 | | UPC | 880208490465 816317001698 816317002961 | | Unit Count | 2.0 count | | Upper Temperature Rating | 38 Degrees Celsius | ## Product Details - **Alarm:** Audible - **Brand:** Fireangel - **Colour:** White - **Item weight:** 310 Grams - **Operating humidity:** Up to 90% RH non-condensing - **Power source:** Battery Powered - **Product dimensions:** 3.4D x 13W x 13H centimetres - **Sensor type:** Photoelectric - **Style:** TST-622 - **Upper temperature rating:** 38 Degrees Celsius ## Images ![ST-622T Smoke Alarm, 2 Pack - Image 1](https://m.media-amazon.com/images/I/51bX4mVQEtL.jpg) ![ST-622T Smoke Alarm, 2 Pack - Image 2](https://m.media-amazon.com/images/I/81vkoTmn3TL.jpg) ![ST-622T Smoke Alarm, 2 Pack - Image 3](https://m.media-amazon.com/images/I/71bOA7OT7eL.jpg) ![ST-622T Smoke Alarm, 2 Pack - Image 4](https://m.media-amazon.com/images/I/714LDJdAQSL.jpg) ![ST-622T Smoke Alarm, 2 Pack - Image 5](https://m.media-amazon.com/images/I/516biEyZhuL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: One of the detectors doesn’t work** A: Return them. Contact Amazon https://www.amazon.co.uk/gp/orc/returns/homepage.html/ref=orc_surl_ret_hp?ref_=orc_spr_home_page_rdr&fg=1 **Q: Can you use with 3m magnetic plates** A: Yes. Works really well with them. **Q: What does the diameter of the baseplate measure please?** A: Alarm is 130mm across, the baseplate or fixing plate is 120mm **Q: how loud is it ie how many decibels many thanks** A: Thank you for your enquiry. The answer to your question is 85dB(A) at 3m (minimum). If you require any further information please do not hesitate to contact us directly. ## Customer Reviews ### ⭐⭐⭐⭐⭐ GREAT VALUE AND A FIRE SERVICE RECOMMENDED MAKE *by H***S on 28 February 2021* Smoke detectors are there to save your life. They also have a lifespan of 10 years before they should be replaced. The last detectors we had were installed in the house in 1993 when it was built! These are easy to put up, two screws in the baseplate and then twist and lock the unit into place. It's really simple and even has instructions in the box. It has a burnt toast feature (you can switch it off for 10 minutes if you burn toast) and it's loud. A red light flashes every 45 seconds to tell you it is active. Test the device and you will find it wakes any hibernating grizzly. The battery life is 10 years, after which it should be replaced. Interestingly smoke detectors have 'use by' dates, always check. This one had a use by date of 10 years + 1 year so it was fresh from the factory. Incidentally, these can be found recommended on the Fire Service website. Good value for a pack of two. ### ⭐⭐⭐⭐⭐ All good. No issues *by D***K on 27 October 2025* Very good Easy to install and a long battery life ### ⭐⭐⭐⭐⭐ Repeat customer *by D***Y on 8 June 2019* This is really a review for the two smoke alarms I bought 12 years ago - they were FireAngel Model SI-610. They had been working fine since I got them (as far as I know), then 6 weeks ago one of them started emitting its low battery beep. So I bought another two of the nearest current equivalent, the ST-622, hoping they will last as long. I was pleased to find that, in spite of the change in model number, they are backwards compatible with the old backplate, so installation only took a few seconds. Today I had to replace the second one. Including a 10 year life battery is a great idea, as the radioactive source in the alarm only lasts about 10 years anyway before the whole unit needs replacing. So it works out cheaper than replacing the battery every year or two, and with less faff. Apart from cosmetic changes, the only difference I can see between the two models is that the originals were made in China, and the later ones in Poland. Hopefully, these will last as long, and I won't have to trigger the 10 year guarantee. ## Frequently Bought Together - Fireangel TST-622Q Smoke Alarm, 2 Pack - 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/86160751-st-622t-smoke-alarm-2-pack](https://www.desertcart.be/products/86160751-st-622t-smoke-alarm-2-pack) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-02*