--- product_id: 470810555 title: "FA3820 Carbon Monoxide Detector FA6812 Carbon Monoxide Detector" brand: "fireangel" price: "€ 52.91" currency: EUR in_stock: true category: "Fireangel" url: https://www.desertcart.hr/products/470810555-fa3820-carbon-monoxide-detector-fa6812-carbon-monoxide-detector store_origin: HR region: Croatia --- # Compact 125x67x33 mm size 10-year sealed battery life 85 dB loud alarm with flashing LED FA3820 Carbon Monoxide Detector FA6812 Carbon Monoxide Detector **Brand:** fireangel **Price:** € 52.91 **Availability:** ✅ In Stock ## Summary > 🚨 Stay ahead of danger with FireAngel’s 10-year CO guardian! ## Quick Answers - **What is this?** FA3820 Carbon Monoxide Detector FA6812 Carbon Monoxide Detector by fireangel - **How much does it cost?** € 52.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/470810555-fa3820-carbon-monoxide-detector-fa6812-carbon-monoxide-detector) ## 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 - • **Certified & Trusted:** UKCA marked, BSI Kitemark certified to the latest safety standards for total confidence. - • **Travel-Ready Safety:** Compact, portable design with wall-mount option protects you at home or on the go. - • **Rapid Danger Detection:** High sensitivity mode triggers early alerts at 180 ppm CO for proactive safety. - • **Clear, Unmissable Alerts:** Loud 85 dB alarm plus flashing red LED ensures you never miss a warning. - • **Decade-Long Peace of Mind:** Sealed, tamper-proof 10-year battery means no replacements, no hassle. ## Overview The FireAngel FA3820 Carbon Monoxide Detector features an advanced electrochemical sensor with high sensitivity mode for early CO detection, a powerful 85 dB alarm paired with a flashing red LED, and a sealed 10-year battery ensuring maintenance-free protection. Compact and portable, it’s certified to UK and BSI standards, making it a reliable, long-term safety solution for any home or rental property. ## Description From the brand Shop Smoke Alarms Visit the store Shop Smoke Alarms Visit the store Shop Carbon Monoxide Alarms Visit the store Shop Carbon Monoxide Alarms Shop Heat Alarms Visit the store Shop Heat Alarms Shop Pro Connected Alarms Visit the store Shop Pro Connected Alarms ## Features - CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO) in your home, alerting you with 4 loud chirps (85 dB(A) at 3 metres) and a flashing red ‘CO’ LED light. - ENHANCED SENSING: The alarm’s high sensitivity mode will activate if it predicts that CO levels will rise to or above 180 ppm, providing a quicker alert and a ‘pre alarm’ with a visual instruction to ‘ventilate'. - 10-YEAR SEALED FOR LIFE BATTERY: Each CO monitor is fitted with a sealed, tamper proof, 10 year battery that will last the lifetime of the alarm. A flashing amber '!' and an audible beep will alert you when the device needs replacing. - ALARM MEMORY: Your device will notify you of a CO alarm in your absence. If not silenced, the alarm will continue to sound until CO levels are safe. The red ‘CO’ light will continue flashing as a visual indication of a previous activation. - PORTABLE CARBON MONOXIDE DETECTOR: Measuring 125 x 67 x 33 mm, this compact, free standing device is travel friendly and provides protection wherever you go. It also includes an integrated mounting bracket and screws for easy wall mounting. - SAFETY ASSURED: Suitable for all domestic and rental premises, the FA3820 carbon monoxide monitor is UKCA marked, Kitemark certified, and third-party approved by the British Standards Institute (BSI) to BS EN 50291-1:2018 and EN 50291-2:2019. - FIREANGEL HOME PROTECTION: In addition to our carbon monoxide detectors, 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, smoke, and heat alarms. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B9HC17ZG | | Alarm | Audible | | Best Sellers Rank | 343 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Carbon Monoxide Detectors | | Brand | Fireangel | | Colour | White | | Country of Origin | China | | Customer Reviews | 4.6 4.6 out of 5 stars (3,216) | | Included Components | 1 x Carbon Monoxide Detector (with sealed battery), 1 x Manual | | Item Dimensions D x W x H | 3.3D x 12.5W x 6.7H centimetres | | Item Type Name | Carbon Monoxide Alarm | | Item Weight | 95 Grams | | Manufacturer | FireAngel | | Manufacturer Contact Information | FireAngel Safety Technology Limited, Vanguard Centre Coventry, CV4 7EZ, UK. | | Manufacturer Warranty Description | 5 year manufacturer's warranty. | | Material | Plastic | | Model Number | FA3820 | | Number of Items | 1 | | Part Number | FA3820 | | Power source | Battery Powered | | Product Style | Single | | Sensor Type | Electrochemical | | UPC | 816317006020 | | Unit Count | 1.0 count | ## Product Details - **Alarm:** Audible - **Brand:** Fireangel - **Colour:** White - **Item weight:** 95 Grams - **Material:** Plastic - **Power source:** Battery Powered - **Product dimensions:** 3.3D x 12.5W x 6.7H centimetres - **Sensor type:** Electrochemical - **Style:** Single - **Unit count:** 1.0 count ## Images ![FA3820 Carbon Monoxide Detector FA6812 Carbon Monoxide Detector - Image 1](https://m.media-amazon.com/images/I/51gt0uac51L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Silence mode how to set up? Pressing test button gives me alarm. What's the point then?** A: I don't think there is a set up procedure for silent mode. I think that after testing, when the alarm stops, the unit goes into silent mode for 5 minutes to reset itself and then starts monitoring again. **Q: To Seller: What is the battery (lithium) expiry date printed on the box? Thank you.** A: I bought one of these about a month ago. I don't have the box anymore, but the printing on the unit says replace by 09/2034. **Q: Can this be used outdoors for my patio heater ?** A: I wouldn't think so as if it's outdoors, any carbon monoxide would just disperse harmlessly in the air. It's only dangerous indoors. **Q: Contact seller I bought two they arrived today one is very quiet the other perfect us this a fault? The other is perfect please devise** A: When I activated the test procedure the alarm volume increased and was fairly loud. ## Frequently Bought Together - FireAngel Carbon Monoxide Detector 10-Year Life Sealed Battery - FA3820 Carbon Monoxide Alarm for Home and Holiday - Portable CO Alarm - Travel Carbon Monoxide Detector and Monitor - White - 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 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.hr/products/470810555-fa3820-carbon-monoxide-detector-fa6812-carbon-monoxide-detector](https://www.desertcart.hr/products/470810555-fa3820-carbon-monoxide-detector-fa6812-carbon-monoxide-detector) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-21*