--- product_id: 659824221 title: "Meross CS11 Dual Sensor Smoke and Carbon Monoxide Alarm/Detector for Home | 10-Year Battery Carbon Monoxide Detector, Smoke Alarm for Home with Test/Silence Button, 85dB Fire Alarm, EN 14604 & 50291" brand: "meross" price: "₩119328" currency: KRW in_stock: true reviews_count: 8 url: https://www.desertcart.kr/products/659824221-meross-cs11-dual-sensor-smoke-and-carbon-monoxide-alarm-detector store_origin: KR region: South Korea --- # 10-year built-in battery life 85dB loud fire alarm 5-min DIY installation Meross CS11 Dual Sensor Smoke and Carbon Monoxide Alarm/Detector for Home | 10-Year Battery Carbon Monoxide Detector, Smoke Alarm for Home with Test/Silence Button, 85dB Fire Alarm, EN 14604 & 50291 **Brand:** meross **Price:** ₩119328 **Availability:** ✅ In Stock ## Summary > 🏠 Protect smarter, live safer — your 10-year home guardian! ## Quick Answers - **What is this?** Meross CS11 Dual Sensor Smoke and Carbon Monoxide Alarm/Detector for Home | 10-Year Battery Carbon Monoxide Detector, Smoke Alarm for Home with Test/Silence Button, 85dB Fire Alarm, EN 14604 & 50291 by meross - **How much does it cost?** ₩119328 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/659824221-meross-cs11-dual-sensor-smoke-and-carbon-monoxide-alarm-detector) ## Best For - meross enthusiasts ## Why This Product - Trusted meross brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** No electrician needed—mount in 5 minutes with included screws and bracket. - • **Dual Threat Detection:** Photoelectric smoke + electrochemical CO sensors work independently for precise alerts. - • **Sleek & Subtle Design:** Minimalist white round shape blends seamlessly into any modern home décor. - • **Instant Emergency Alerts:** 85dB alarm with clear red LED signals keeps your home safe and sound. - • **Decade-Long Peace of Mind:** Built-in 10-year battery means zero hassle and uninterrupted protection. ## Overview The Meross CS11 is a dual sensor smoke and carbon monoxide alarm featuring independent photoelectric and electrochemical sensors for reliable detection. It boasts a 10-year built-in battery, an 85dB alarm, and easy DIY installation. Certified to EN 14604 & 50291 standards, it offers continuous, maintenance-free protection with a sleek design that fits any home. ## Description Our smoke alarms are rigorously tested to combine carbon monoxide and smoke detection technology, providing added peace of mind to protect your home. Bedrooms, hallways, living rooms, stairwells, basements, kitchens, and garages. Following these placement tips ensures that alarms will be heard quickly throughout the house. Choose Meross as your home’s guardian. The battery ensures the detector provides uninterrupted 24/7 protection, even during a power failure, so you and your family can sleep safe and sound every night. The Meross Smoke & CO Detector helps protect your home from potential threats by providing constant monitoring. Smoke and CO Alarm New Matter Smoke Alarm New Matter Smoke Alarm Smart Smoke Alarm Smart Power Strip Smart Plug Mini Matter Smart Plug Mini ## Features - 2-in-1 Function: The photoelectric smoke detector and electrochemical CO sensor work independently of each other. If the carbon-monoxide-detector detects both smoke and carbon monoxide, it sounds first for smoke and then for CO. The CO detector detects both fast and slow-burning fires, minimising false alarms. - 10-Year Service Life: The smoke alarm and carbon monoxide detector contains one built-in 3V CR123A battery (not removable) that can last 10 years. You can avoid the trouble of replacing the battery, and it ensures your carbon monoxide alarm is always ready to protect. - User-Friendly Design: The light and simple white round design ensures the carbon monoxide detector blends seamlessly into your home. The carbon monoxide and smoke detector includes a test/silence button (please press the test button monthly to confirm the working status of the smoke alarm). The fire alarm sound is over 85dB at 3 metres and sounds throughout your home; press the test button to silence. - High-Tech: This carbon monoxide and smoke detector has an inbuilt smart chipset. The carbon monoxide alarm is automatically activated when it is attached to the bracket. The LED light is normally green and turns red in an emergency. The smoke alarm for home complies with EN 14604 and EN 50291 standards to ensure reliable quality. - Easy Installation: The battery-operated smoke detector (not wired) can be installed by yourself in 5 minutes without the need for an electrician. The CO alarm is easy to mount on any wall or ceiling with the included screws. Note: Carbon monoxide is lighter than air, so it is recommended to install it at a distance of 30 cm from the ceiling. ## Technical Specifications | Specification | Value | |---------------|-------| | Alarm | Audible | | Asin | B0D5XH6FJY | | Best Sellers Rank | 32,012 in DIY & Tools (See Top 100 in DIY & Tools) 11 in Combination Smoke & Carbon Monoxide Detectors | | Brand | meross | | Colour | White | | Country Of Origin | China | | Customer Reviews | 4.5 4.5 out of 5 stars (82) 4.5 out of 5 stars | | Included Components | 1 x Combination Smoke and Carbon Monoxide Detectors 1 x Mounting Bracket 1 x Screw Kit 1 x User Manual | | Item Dimensions D X W X H | 2.8D x 12W x 12H centimetres | | Item Type Name | Smart Smoke Alarm | | Item Weight | 135 Grams | | Manufacturer | meross | | Manufacturer Warranty Description | 2 year manufacturer. | | Material | ABS | | Model Number | CS11 | | Number Of Items | 1 | | Part Number | CS11 | | Power Source | Battery Powered | | Product Style | Smoke & CO Detector | | Sensor Type | Photoelectric | | Unit Count | 1.0 count | ## Product Details - **Brand:** meross - **Colour:** White - **Item weight:** 135 Grams - **Manufacturer:** meross - **Number of items:** 1 - **Power source:** Battery Powered - **Product dimensions:** 2.8D x 12W x 12H centimetres - **Style:** Smoke & CO Detector - **Unit count:** 1.0 count ## Images ![Meross CS11 Dual Sensor Smoke and Carbon Monoxide Alarm/Detector for Home | 10-Year Battery Carbon Monoxide Detector, Smoke Alarm for Home with Test/Silence Button, 85dB Fire Alarm, EN 14604 & 50291 - Image 1](https://m.media-amazon.com/images/I/61AOrhOOnUL.jpg) ![Meross CS11 Dual Sensor Smoke and Carbon Monoxide Alarm/Detector for Home | 10-Year Battery Carbon Monoxide Detector, Smoke Alarm for Home with Test/Silence Button, 85dB Fire Alarm, EN 14604 & 50291 - Image 2](https://m.media-amazon.com/images/I/71IyWZHRyEL.jpg) ![Meross CS11 Dual Sensor Smoke and Carbon Monoxide Alarm/Detector for Home | 10-Year Battery Carbon Monoxide Detector, Smoke Alarm for Home with Test/Silence Button, 85dB Fire Alarm, EN 14604 & 50291 - Image 3](https://m.media-amazon.com/images/I/71VJ2I2sNRL.jpg) ![Meross CS11 Dual Sensor Smoke and Carbon Monoxide Alarm/Detector for Home | 10-Year Battery Carbon Monoxide Detector, Smoke Alarm for Home with Test/Silence Button, 85dB Fire Alarm, EN 14604 & 50291 - Image 4](https://m.media-amazon.com/images/I/713YdYanlEL.jpg) ![Meross CS11 Dual Sensor Smoke and Carbon Monoxide Alarm/Detector for Home | 10-Year Battery Carbon Monoxide Detector, Smoke Alarm for Home with Test/Silence Button, 85dB Fire Alarm, EN 14604 & 50291 - Image 5](https://m.media-amazon.com/images/I/711A4OUsy4L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great value for money and peace of mind *by on Reviewed in the United Kingdom 21 July 2026* Very happy with this device - well two of them. I had Nest smoke detectors for 10 years but apparently they are so intelligent they stopped working as 10 years is the limit for a detector device? Also Nest has gone down the pan since Gxxgle bought them.So one upstairs and one down, virtually the same size so didn't need to drill more holes in the ceiling.And a fraction of the price.I guess I'll really only know the value of these if the worst ever happens but for now I have peace of mind. ### ⭐⭐⭐⭐⭐ Straight forward replacement for end of life sensor *by on Reviewed in the United Kingdom 8 August 2026* Great choice to replace obsolete NEST Protect after sensor life ended. ### ⭐⭐⭐⭐⭐ Easy to install *by on Reviewed in the United Kingdom 27 April 2026* Easy to install. Comes with all fixtures ## Frequently Bought Together - meross CS11 Safty Alarm, White, 1 Pack - Meross Interlinked WiFi Smoke Alarm, Smoke Detector with Hub, Low Battery Alert Silence Button, Wireless Smoke Alarms for Home, Replaceable Battery, Apple HomeKit, SmartThings Supported, 2.4GHz Only --- ## 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.kr/products/659824221-meross-cs11-dual-sensor-smoke-and-carbon-monoxide-alarm-detector](https://www.desertcart.kr/products/659824221-meross-cs11-dual-sensor-smoke-and-carbon-monoxide-alarm-detector) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-08-15*