--- product_id: 602345752 title: "Battery Smoke Alarm | SMI100" brand: "first alert" price: "€ 73.06" currency: EUR in_stock: true reviews_count: 8 category: "First Alert" url: https://www.desertcart.fi/products/602345752-battery-smoke-alarm-smi100 store_origin: FI region: Finland --- # Battery-powered for uninterrupted protection Front-access battery compartment for easy swaps Precision Detection tech reduces false alarms Battery Smoke Alarm | SMI100 **Brand:** first alert **Price:** € 73.06 **Availability:** ✅ In Stock ## Summary > 🔥 Stay ahead of danger with precision and ease! ⚡ ## Quick Answers - **What is this?** Battery Smoke Alarm | SMI100 by first alert - **How much does it cost?** € 73.06 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/602345752-battery-smoke-alarm-smi100) ## Best For - first alert enthusiasts ## Why This Product - Trusted first alert brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **End-of-Life Alert:** Know exactly when it’s time to upgrade with a clear end-of-life warning—never get caught off guard. - • **Reliable Peace of Mind:** Loud alarm and easy test/silence button keep your home safe and your mind at ease. - • **Smart Precision Detection:** Advanced sensing technology minimizes annoying cooking false alarms while ensuring early fire alerts. - • **User-Friendly Battery Access:** Front-facing battery compartment lets you replace batteries without uninstalling the unit. - • **Effortless Installation & Maintenance:** Battery-operated design means no wiring hassle and quick setup in minutes. ## Overview The First Alert Battery Smoke Alarm (SMI100) combines cutting-edge Precision Detection technology with a battery-powered design for easy installation and maintenance. It reduces false alarms from cooking, features a front-access battery compartment, and includes an end-of-life warning to ensure continuous, reliable fire protection. Trusted by thousands, it’s a top-rated, hassle-free safety upgrade for any modern home. ## Description The First Alert SMI100 Battery-Operated Smoke Alarm is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This battery-operated smoke alarm is easy to install and the front access battery compartment makes for easy battery replacements. Review: Simple to Install & Gives Peace of Mind - This smoke alarm was quick and easy to install, and it provides exactly what I was looking for-reliable protection and peace of mind. The instructions were clear, and it was up and running in just a few minutes. The alarm has a clean, low-profile design that blends in nicely with the ceiling. I also like that it's battery operated, so it continues working even if the power goes out. The test button is easy to access, and the alarm is loud enough to be heard throughout the house, which is exactly what you want in an emergency. If you're replacing an old smoke detector or adding extra protection to your home, this is a dependable, easy-to-install option from a trusted brand. Highly recommend! Review: Worked well and easy to install and test. - My wife wanted these to replace the ones in her mom’s house. I installed them and they were easy to install and they came with batteries and were easy to test. The alarms are well made with strong materials. They are light and the sensitivity is good. Great replacement product. Worth the money ## Features - First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency - Battery-operated alarm allows for easy installation and maintenance - Front access battery compartment makes for easy battery replacements - End-of-life warning lets you know when it’s time to replace the alarm - Test/silence button for efficient testing to ensure alarm is working properly ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CJLN45JZ | | Alarm | Smoke | | Best Sellers Rank | #37 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Smoke Detectors & Fire Alarms | | Brand | First Alert | | Built-In Media | 9V Alkaline Battery | | Color | White | | Customer Reviews | 4.6 out of 5 stars 5,103 Reviews | | Item Dimensions D x W x H | 5.6"D x 5.6"W x 1.9"H | | Item Type Name | Smoke Alarm | | Item Weight | 9.6 ounces | | Manufacturer | Resideo | | Mfr Part Number | SMI100 | | Model Number | SMI100 | | Number of Items | 2 | | Power Source | Battery Powered | | Product Dimensions | 5.6"D x 5.6"W x 1.9"H | | Product Style | Precision Detection | | Sensor Type | Ionization | | Style | Precision Detection | | UPC | 029054022400 | | Unit Count | 2 Count | ## Product Details - **Alarm:** Smoke - **Brand:** First Alert - **Color:** White - **Item Weight:** 9.6 ounces - **Number of Items:** 2 - **Power Source:** Battery Powered - **Product Dimensions:** 5.6"D x 5.6"W x 1.9"H - **Sensor Type:** Ionization - **Style:** Precision Detection - **Unit Count:** 2 Count ## Images ![Battery Smoke Alarm | SMI100 - Image 1](https://m.media-amazon.com/images/I/61G4T1kDyUL.jpg) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Simple to Install & Gives Peace of Mind *by R***L on July 26, 2026* This smoke alarm was quick and easy to install, and it provides exactly what I was looking for-reliable protection and peace of mind. The instructions were clear, and it was up and running in just a few minutes. The alarm has a clean, low-profile design that blends in nicely with the ceiling. I also like that it's battery operated, so it continues working even if the power goes out. The test button is easy to access, and the alarm is loud enough to be heard throughout the house, which is exactly what you want in an emergency. If you're replacing an old smoke detector or adding extra protection to your home, this is a dependable, easy-to-install option from a trusted brand. Highly recommend! ### ⭐⭐⭐⭐⭐ Worked well and easy to install and test. *by O***R on June 18, 2026* My wife wanted these to replace the ones in her mom’s house. I installed them and they were easy to install and they came with batteries and were easy to test. The alarms are well made with strong materials. They are light and the sensitivity is good. Great replacement product. Worth the money ### ⭐⭐⭐⭐⭐ Great detectors *by S***T on July 25, 2026* Great working smoke detectors at a great price. Very easy to install. They include the mounting plate but mine just so happened to be the same size. ## Frequently Bought Together - First Alert SMI100, Battery-Operated Smoke Alarm, 2-Pack - Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable - Amazon Basics 8-Pack 9V Alkaline Batteries, 5-Year Shelf Life - for Smoke/CO Detector, Electronics & Audio --- ## 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.fi/products/602345752-battery-smoke-alarm-smi100](https://www.desertcart.fi/products/602345752-battery-smoke-alarm-smi100) --- *Product available on Desertcart Finland* *Store origin: FI* *Last updated: 2026-08-09*