--- product_id: 649336512 title: "Battery Combination Smoke & Carbon Monoxide Alarm with Voice | SMCO500V - Interconnected Alarm works with compatiable alarms, when one sounds, they all sound" brand: "first alert" price: "€ 106.20" currency: EUR in_stock: true reviews_count: 8 category: "First Alert" url: https://www.desertcart.hr/products/649336512-battery-combination-smoke-and-carbon-monoxide-alarm-with-voice-smco500v store_origin: HR region: Croatia --- # Voice & location alerts for clear guidance Battery-powered for easy install & maintenance Precision Detection tech reduces false alarms Battery Combination Smoke & Carbon Monoxide Alarm with Voice | SMCO500V - Interconnected Alarm works with compatiable alarms, when one sounds, they all sound **Brand:** first alert **Price:** € 106.20 **Availability:** ✅ In Stock ## Summary > 🚨 Stay ahead of danger with smart, clear, and connected protection! ## Quick Answers - **What is this?** Battery Combination Smoke & Carbon Monoxide Alarm with Voice | SMCO500V - Interconnected Alarm works with compatiable alarms, when one sounds, they all sound by first alert - **How much does it cost?** € 106.20 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/649336512-battery-combination-smoke-and-carbon-monoxide-alarm-with-voice-smco500v) ## 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 - • **Dual Protection in One:** Smoke and carbon monoxide detection combined for comprehensive home safety. - • **Voice & Location Alerts:** Know exactly what and where the danger is—clear voice guidance to help you escape safely. - • **Seamless Interconnectivity:** When one alarm sounds, all compatible First Alert alarms respond—total home coverage. - • **Battery-Powered Convenience:** No wiring hassles—easy to install and maintain with included batteries and mounting hardware. - • **Precision Detection Technology:** Cut through cooking false alarms with advanced sensing that meets new industry standards. ## Overview The First Alert SMCO500V is a battery-operated combination smoke and carbon monoxide alarm featuring advanced Precision Detection technology to minimize false alarms. It offers voice and location alerts for precise emergency guidance and interconnects with compatible alarms for whole-home safety. Easy to install and maintain, this device delivers reliable dual-threat protection, making it an essential upgrade for any modern home. ## Description The First Alert SMCO500V Interconnect Battery-Operated Combination Smoke & Carbon Monoxide with Voice & Location Alerts helps provide an early warning and guide your escape to safety. Also equipped with First Alert's Precision Detection advanced sensing technology that meets new industry standards. Review: Clear, reliable, and essential for home safety - This unit combines smoke and carbon monoxide detection in one device, which simplifies both the install and the long-term maintenance. It came with batteries, screws, and anchors — everything needed to mount it to the ceiling. Installation was straightforward and took just a few minutes. The voice alerts are clear and the test button is easy to use. It integrates with other First Alert units, so if one is triggered, the others will sound as well. That kind of system-level awareness makes a real difference. I bought this as part of a broader approach to home safety and preparedness. It’s not something I interact with often, but knowing it’s there and functioning properly adds peace of mind. This is a quiet, essential device that supports a safer, more intentional home. Review: Very Effective, Well Worth the Money - I have purchased a property that was lacking in the smoke alarm department and had no wireless interconnection and these were the first choice. They are very easy to pair and install. Fair warning though, they are loud. I wore my noise cancelling earbuds and even through those, I can clearly hear them. The quality is good, you can hear them clearly when they give the location of which one went off. These things are also very functional as I had unintentionally set them off less than a couple weeks of installation. They will save your life in a fire. I highly recommend getting these as they are worth the investment. ## 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 - Voice & location alerts tell you what the danger is and its location to help you escape safely - Battery-operated alarm is easy to install and maintain - Provides reliable 2-in-1 protection against both smoke and carbon monoxide ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CV54Z1Q7 | | Alarm | Smoke and CO Alarm | | Best Sellers Rank | #7,896 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in Smoke & Carbon Monoxide Alarms | | Brand | First Alert | | Built-In Media | AA Batteries | | Color | White | | Customer Reviews | 4.2 out of 5 stars 334 Reviews | | Global Trade Identification Number | 00194160011843 | | Item Dimensions D x W x H | 5"D x 5"W x 2"H | | Item Type Name | Smoke and CO Alarm | | Item Weight | 10.9 ounces | | Manufacturer | Resideo | | Mfr Part Number | 1048446 | | Model Number | SMCO500V | | Number of Items | 1 | | Power Source | Battery Powered | | Product Dimensions | 5"D x 5"W x 2"H | | Product Style | Precision Detection | | Sensor Type | Photoelectric | | Style | Precision Detection | | UPC | 194160011843 | | Unit Count | 1 Count | ## Product Details - **Alarm:** Smoke and CO Alarm - **Brand:** First Alert - **Color:** White - **Global Trade Identification Number:** 00194160011843 - **Item Weight:** 10.9 ounces - **Power Source:** Battery Powered - **Product Dimensions:** 5"D x 5"W x 2"H - **Sensor Type:** Photoelectric - **Style:** Precision Detection - **Unit Count:** 1 Count ## Images ![Battery Combination Smoke & Carbon Monoxide Alarm with Voice | SMCO500V - Interconnected Alarm works with compatiable alarms, when one sounds, they all sound - Image 1](https://m.media-amazon.com/images/I/61CT1CiIWIL.jpg) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Clear, reliable, and essential for home safety *by E***F on June 26, 2025* This unit combines smoke and carbon monoxide detection in one device, which simplifies both the install and the long-term maintenance. It came with batteries, screws, and anchors — everything needed to mount it to the ceiling. Installation was straightforward and took just a few minutes. The voice alerts are clear and the test button is easy to use. It integrates with other First Alert units, so if one is triggered, the others will sound as well. That kind of system-level awareness makes a real difference. I bought this as part of a broader approach to home safety and preparedness. It’s not something I interact with often, but knowing it’s there and functioning properly adds peace of mind. This is a quiet, essential device that supports a safer, more intentional home. ### ⭐⭐⭐⭐⭐ Very Effective, Well Worth the Money *by A***S on September 17, 2025* I have purchased a property that was lacking in the smoke alarm department and had no wireless interconnection and these were the first choice. They are very easy to pair and install. Fair warning though, they are loud. I wore my noise cancelling earbuds and even through those, I can clearly hear them. The quality is good, you can hear them clearly when they give the location of which one went off. These things are also very functional as I had unintentionally set them off less than a couple weeks of installation. They will save your life in a fire. I highly recommend getting these as they are worth the investment. ### ⭐⭐⭐⭐⭐ The best smoke detection *by M***N on June 28, 2026* These are great cause of their interconnection. It is a life saver to me cause the previous set one in the kitchen qent off and me in the front year fortunately with a garage door open the one in the garage went off signaling me to act. My highest rating. ## Frequently Bought Together - First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack - First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 1-Pack - BRK-First Alert SA520B OneLink Smoke Alarm, 120V AC, Hardwired, White --- ## 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/649336512-battery-combination-smoke-and-carbon-monoxide-alarm-with-voice-smco500v](https://www.desertcart.hr/products/649336512-battery-combination-smoke-and-carbon-monoxide-alarm-with-voice-smco500v) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-22*