--- product_id: 604424417 title: "First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack" brand: "first alert" price: "€ 36.00" currency: EUR in_stock: true reviews_count: 8 category: "First Alert" url: https://www.desertcart.hr/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence store_origin: HR region: Croatia --- # Battery-operated, no wiring hassle Precision Detection tech reduces false alarms Front-access battery compartment First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack **Brand:** first alert **Price:** € 36.00 **Availability:** ✅ In Stock ## Summary > 🚨 Stay safe, stay smart—because your peace of mind deserves precision. ## Quick Answers - **What is this?** First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack by first alert - **How much does it cost?** € 36.00 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/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence) ## 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 Warning:** Stay ahead of safety with timely alerts when it’s time to replace your alarm—never compromise on protection. - • **Smart Battery Access:** Front-facing battery compartment lets you swap batteries without uninstalling—because convenience is key. - • **Test & Silence Button:** Quickly verify your alarm’s readiness or silence false alerts with a simple press—control at your fingertips. - • **Effortless Installation:** Battery-powered design means no wiring—mount in minutes and join thousands securing their homes hassle-free. - • **Precision Detection Technology:** Advanced sensing reduces nuisance alarms from cooking smoke, so you only get alerts that matter. ## Overview The First Alert SMI100 is a battery-operated smoke alarm featuring advanced Precision Detection technology that minimizes false alarms while providing early fire warnings. Its user-friendly design includes a front-access battery compartment, a test/silence button for easy maintenance, and an end-of-life alert to ensure continuous home safety. Ideal for quick installation and reliable protection, it’s a top-rated choice for modern households. ## 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: Reliable Smoke Alarm That Was Quick and Easy to Install - I recently purchased the First Alert SMI100 smoke alarms and I’m really happy with them. Installation was incredibly easy since they are battery operated, so there was no wiring needed. I had both alarms mounted in just a few minutes. The design is simple and clean, and the front battery compartment makes it easy to change the battery without taking the whole unit down. I also like the test/silence button on the front because it makes testing the alarm quick and simple. The alarm itself is loud enough that you would definitely hear it throughout the house, which is exactly what you want for safety. The detectors use updated sensing technology designed to give early warning of fires while reducing nuisance alarms from things like cooking smoke.Overall, these smoke alarms give me peace of mind knowing my home has reliable protection. They were affordable, easy to install, and work exactly as expected. I would definitely recommend them to anyone looking for a simple and dependable smoke alarm. Review: Excellent smoke detector - Excellent alarm, easy to install (I used double stick tape and it has held up perfectly). Thankfully I haven't tested it with smoke, but the test feature works great. ## 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 | B0CJMP7WHH | | Alarm | Smoke Alarm | | Best Sellers Rank | #63 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 | 4.5 4.5 out of 5 stars (3,749) | | Item Dimensions D x W x H | 5.4"D x 5.4"W x 1.9"H | | Item Type Name | Smoke Alarm | | Item Weight | 0.7 Pounds | | Manufacturer | Resideo | | Model Number | SMI100 | | Operating Humidity | 10-95% RH | | Power Source | Battery Powered | | Product Style | Precision Detection | | Sensor Type | Ionization | | UPC | 029054022387 | | Unit Count | 1.0 Count | ## Product Details - **Alarm:** Smoke Alarm - **Brand:** First Alert - **Color:** White - **Item Weight:** 0.7 Pounds - **Number of Items:** 1 - **Operating Humidity:** 10-95% RH - **Power Source:** Battery Powered - **Product Dimensions:** 5.4"D x 5.4"W x 1.9"H - **Sensor Type:** Ionization - **Style:** Precision Detection ## Images ![First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack - Image 1](https://m.media-amazon.com/images/I/61GUtvUotTL.jpg) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable Smoke Alarm That Was Quick and Easy to Install *by S***N on March 4, 2026* I recently purchased the First Alert SMI100 smoke alarms and I’m really happy with them. Installation was incredibly easy since they are battery operated, so there was no wiring needed. I had both alarms mounted in just a few minutes. The design is simple and clean, and the front battery compartment makes it easy to change the battery without taking the whole unit down. I also like the test/silence button on the front because it makes testing the alarm quick and simple. The alarm itself is loud enough that you would definitely hear it throughout the house, which is exactly what you want for safety. The detectors use updated sensing technology designed to give early warning of fires while reducing nuisance alarms from things like cooking smoke.Overall, these smoke alarms give me peace of mind knowing my home has reliable protection. They were affordable, easy to install, and work exactly as expected. I would definitely recommend them to anyone looking for a simple and dependable smoke alarm. ### ⭐⭐⭐⭐⭐ Excellent smoke detector *by L***A on April 1, 2026* Excellent alarm, easy to install (I used double stick tape and it has held up perfectly). Thankfully I haven't tested it with smoke, but the test feature works great. ### ⭐⭐⭐⭐⭐ Will wake you and your kids if there is a fire *by I***N on March 30, 2026* This First Alert smoke alarm is clearly the standard. Works reliably, is a powerhouse in a small size. It can be installed easily with a simple nail or screw without using the wall attachment materials included. It has a very loud piercing notification signal which is exactly what I needed to wake kids out of bed and get them started on how I have trained them if there is a fire. This unit was a replacement for a unit I have had for nearly 10 years. These smoke alarms are reliable. ## Frequently Bought Together - First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack - Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable - Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button --- ## 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/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence](https://www.desertcart.hr/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-23*