--- product_id: 743238334 title: "First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack" brand: "first alert" price: "₨11649" currency: LKR in_stock: false reviews_count: 5 url: https://www.desertcart.lk/products/743238334-first-alert-smico100-ac-interconnect-hardwire-combination-smoke-and-carbon store_origin: LK region: Sri Lanka --- # Hardwired with battery backup Precision Detection tech Interconnects multiple alarms First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack **Brand:** first alert **Price:** ₨11649 **Availability:** ❌ Out of Stock ## Summary > 🏠 Stay ahead of danger with precision and peace of mind! ## Quick Answers - **What is this?** First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack by first alert - **How much does it cost?** ₨11649 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/743238334-first-alert-smico100-ac-interconnect-hardwire-combination-smoke-and-carbon) ## 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 Installation:** Quick Connect Plug means no rewiring hassle - • **Smart Nuisance Reduction:** Advanced sensing cuts down false alarms from cooking - • **Uninterrupted Protection:** Battery backup keeps you safe during power outages - • **Reliable Performance Check:** Test/silence button ensures your alarm is always ready - • **Seamless Home Safety Network:** Interconnect alarms for instant whole-home alerts ## Overview The First Alert SMICO100-AC is a 3-pack combination smoke and carbon monoxide alarm featuring advanced Precision Detection technology to minimize false alarms. Hardwired with battery backup, it interconnects with compatible units to provide early, whole-home alerts. Easy to install with a Quick Connect Plug and equipped with a test/silence button, it ensures reliable, continuous protection for your home. ## 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 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 - Through early warning interconnect, when one alarm sounds, all compatible alarms will sound - 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 | |---------------|-------| | Alarm | Smoke, CO | | Asin | B0CLVQF7MC | | Brand | First Alert | | Built In Media | Easy Adapter Plug, 9V Battery | | Color | White | | Customer Reviews | 4.4 4.4 out of 5 stars (479) 4.4 out of 5 stars | | Item Type Name | Combination Alarm | | Item Weight | 1.68 Pounds | | Manufacturer | Resideo | | Mfr Part Number | SMICO100-AC | | Model Number | SMICO100-AC | | Number Of Items | 3 | | Power Source | Corded Electric | | Product Style | Precision Detection | | Sensor Type | Ionization | | Unit Count | 3 Count | | Upc | 029054022769 | ## Product Details - **Brand:** First Alert - **Colour:** White - **Item weight:** 1.68 Pounds - **Power source:** Corded Electric - **Style:** Precision Detection ## Images ![First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack - Image 1](https://m.media-amazon.com/images/I/81szIilT2dL.jpg) ![First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack - Image 2](https://m.media-amazon.com/images/I/81mbmPPG07L.jpg) ![First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack - Image 3](https://m.media-amazon.com/images/I/81ydRu2GlFL.jpg) ![First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack - Image 4](https://m.media-amazon.com/images/I/71E8vckI8EL.jpg) ![First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack - Image 5](https://m.media-amazon.com/images/I/71D57xvrb1L.jpg) ## Available Options This product comes in different **Pattern Name, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Clear instructions, zero false alarms, and perfect for our new home! *by on Reviewed in the United States 19 September 2026* We recently bought a new home and made it a top priority to replace all the old, outdated alarms for our family's safety. This 6-pack of First Alert units was the perfect solution to upgrade the whole house at once. Because these are hardwired, we had an electrician handle the installation to ensure the interconnected communication lines were wired safely and correctly.As you can see from my photo, it looks very clean mounted on the ceiling and has a solid green indicator light showing it has power. The precision sensors are excellent because we haven't had a single false alarm from kitchen cooking smoke since putting them up. It gives us total peace of mind knowing that if one alarm triggers, they will all go off throughout the house.If you are moving into a new place and want a reliable, high-quality safety system, this 6-pack is absolutely worth the investment. ### ⭐⭐⭐⭐⭐ Be sure to use included ceiling ring. *by on Reviewed in the United States 16 October 2026* Struggled a bit installing as I didn’t use the new ceiling ring and it is a slightly different. Once I realized that, installing new ring and detector went quickly. ### ⭐⭐⭐⭐⭐ Cheaper alternative to NEST. *by on Reviewed in the United States 7 September 2026* From Nest to this. I miss my old Nest Smoke Detectors, but 10 years went by fast. These are basic, simple, no wifi and no voice alerts, no walkway light but are bright in the dark room. Replaced the battery with Lithium 9v over the basic Duracell. Easy to replace. I dont get why others are not able to replace that battery? I dislike that beep in the background.Coming from NEST products it was nice I did not have to get an app to use these things. I do miss the spanish voice alerts and the hallway ring light when people walked by. This does not have that. The important thing is these were more cheaper, well made and should be good for the next decade. --- ## 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.lk/products/743238334-first-alert-smico100-ac-interconnect-hardwire-combination-smoke-and-carbon](https://www.desertcart.lk/products/743238334-first-alert-smico100-ac-interconnect-hardwire-combination-smoke-and-carbon) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-10-26*