--- product_id: 602000076 title: "First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm" brand: "first alert" price: "$174.87" currency: USD in_stock: true category: "First Alert" url: https://www.desertcart.ec/products/602000076-first-alert-hardwire-combination-smoke-and-carbon-monoxide-alarm store_origin: EC region: Ecuador --- # Hardwired with battery backup Precision Detection tech Interconnects multiple alarms First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm **Brand:** first alert **Price:** $174.87 **Availability:** ✅ In Stock ## Summary > 🔥 Stay ahead of danger with precision and power ⚡ ## Quick Answers - **What is this?** First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm by first alert - **How much does it cost?** $174.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/602000076-first-alert-hardwire-combination-smoke-and-carbon-monoxide-alarm) ## 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 - • **Reliable & Tested:** One-touch test/silence button lets you easily verify functionality and silence false alarms. - • **Effortless Installation:** Quick Connect Plug means no rewiring headaches—get protected faster and smarter. - • **Smart Nuisance Reduction:** Advanced Precision Detection minimizes false alarms from cooking, so you only react to real threats. - • **Uninterrupted Protection:** Battery backup ensures your safety even during power outages—no downtime, no worries. - • **Seamless Home-Wide Safety:** Interconnect alarms for instant, synchronized alerts across your entire home. ## Overview The First Alert SMICO100-AC is a cutting-edge hardwired smoke and carbon monoxide alarm featuring Precision Detection technology to reduce false alarms and provide early fire warnings. It interconnects with compatible alarms for whole-home safety, includes a battery backup for continuous protection during outages, and offers easy installation with a Quick Connect Plug. Designed for modern homes, it ensures reliable, hassle-free monitoring with a simple test/silence button. ## Description The SMICO100-AC Interconnect Hardwire 2-in-1 Smoke & CO Alarm with Battery Backup utilizes First Alert's Precision Detection technology and meets new industry standards. Easily install and interconnect multiple alarms together to create an alarm system throughout your home. ## Features - First Alerts 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 - Through early warning interconnect, when one alarm sounds, all compatible - Quick Connect Plug allows for easy installation with no need to rewire - Battery backup provides continuous protection during power outages - Test/silence button for efficient testing to ensure alarm is working properly ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CLVRSC1Q | | Alarm | Smoke, CO | | Best Sellers Rank | #226 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Smoke & Carbon Monoxide Alarms | | Brand | First Alert | | Built-In Media | Easy Adapter Plug, 9V Battery | | Color | White | | Customer Reviews | 4.4 4.4 out of 5 stars (1,730) | | Item Dimensions D x W x H | 5.5"D x 2"W x 5.5"H | | Item Highlight | SMICO100-AC, 9V Battery Backup | | Item Type Name | Combination Alarm | | Item Weight | 8.96 ounces | | Manufacturer | Resideo | | Mfr Part Number | SMICO100-AC | | Model Number | SMICO100-AC | | Number of Items | 1 | | Operating Humidity | 10-95% RH | | Power Source | Corded Electric | | Product Style | Precision Detection | | Sensor Type | Ionization | | UPC | 029054022752 | | Unit Count | 1 Count | ## Product Details - **Alarm:** Smoke, CO - **Brand:** First Alert - **Color:** White - **Item Weight:** 8.96 ounces - **Operating Humidity:** 10-95% RH - **Power Source:** Corded Electric - **Product Dimensions:** 5.5"D x 2"W x 5.5"H - **Sensor Type:** Ionization - **Style:** Precision Detection - **Unit Count:** 1 Count ## Images ![First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm - Image 1](https://m.media-amazon.com/images/I/81fINKkMRSL.jpg) ![First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm - Image 2](https://m.media-amazon.com/images/I/31Ox4ULeY5L.jpg) ![First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm - Image 3](https://m.media-amazon.com/images/I/41cSvy772WL.jpg) ![First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm - Image 4](https://m.media-amazon.com/images/I/41u2mrtZ+gL.jpg) ![First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm - Image 5](https://m.media-amazon.com/images/I/4176opN1rtL.jpg) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Frequently Bought Together - First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 1-Pack - First Alert SMI100-AC, 9120B Replacement Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack - First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack --- ## 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.ec/products/602000076-first-alert-hardwire-combination-smoke-and-carbon-monoxide-alarm](https://www.desertcart.ec/products/602000076-first-alert-hardwire-combination-smoke-and-carbon-monoxide-alarm) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-09-15*