--- product_id: 604424417 title: "First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack" brand: "first alert" price: "146.55 DT" currency: TND in_stock: true reviews_count: 8 category: "First Alert" url: https://www.desertcart.tn/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence store_origin: TN region: Tunisia --- # Battery-operated, easy install Precision Detection tech Front-access battery compartment First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack **Brand:** first alert **Price:** 146.55 DT **Availability:** ✅ In Stock ## Summary > 🚨 Stay ahead of danger with smart, silent protection! ## 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?** 146.55 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - • **Effortless Maintenance:** Front-access battery compartment lets you swap batteries in seconds, no tools required. - • **Smart End-of-Life Alert:** Never guess when to replace—built-in warning ensures your alarm is always ready. - • **One-Touch Test & Silence:** Quickly verify functionality or silence nuisance alarms with a simple button press. - • **Hassle-Free Battery Power:** Battery-operated design means no wiring—install anywhere, anytime with zero fuss. - • **Cutting-Edge Precision Detection:** Advanced sensing tech reduces false alarms, keeping your home safe without the noise. ## 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. Designed for easy installation and maintenance, it includes a front-access battery compartment, a test/silence button, and an end-of-life alert to ensure continuous, reliable home safety. ## 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: 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 Review: For the money a good product so far. - Installed easily. Works fine so far! ## 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 ## 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 ### ⭐⭐⭐⭐⭐ 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 ### ⭐⭐⭐⭐⭐ For the money a good product so far. *by G***L on June 18, 2026* Installed easily. Works fine so far! ### ⭐⭐⭐⭐⭐ Reliable Smoke Alarm That Was Quick and Easy to Install *by J***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. --- ## 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.tn/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence](https://www.desertcart.tn/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-18*