--- product_id: 2215238 title: "First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack" brand: "first alert" price: "75681CFA" currency: XOF in_stock: true reviews_count: 8 category: "First Alert" url: https://www.desertcart.sn/products/2215238-first-alert-smco500v-interconnect-battery-operated-combination-smoke-and-carbon store_origin: SN region: Senegal --- # Wireless interconnect up to 18 units 85 dB loud voice & siren alert Battery operated with EZ access drawer First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack **Brand:** first alert **Price:** 75681CFA **Availability:** βœ… In Stock ## Summary > πŸ”₯ Stay ahead of danger with smart, wireless peace of mind πŸ“Ά ## Quick Answers - **What is this?** First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack by first alert - **How much does it cost?** 75681CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/2215238-first-alert-smco500v-interconnect-battery-operated-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 - β€’ **Trusted Legacy of Safety:** From the pioneers in home safety since 1958, backed by a 5-year warranty. - β€’ **Clear Voice Location Alerts:** Know exactly where danger strikes with programmable voice notifications. - β€’ **Seamless Wireless Safety Network:** Connect up to 18 alarms for whole-home protection without messy wiring. - β€’ **Effortless Installation & Maintenance:** Battery powered with easy-access drawerβ€”no ceiling removal needed. - β€’ **Photoelectric & Electrochemical Sensors:** Advanced dual-sensing tech reduces false alarms and detects deadly CO leaks. ## Overview The First Alert SCO501CN-3ST is a battery-operated combination smoke and carbon monoxide alarm featuring wireless interconnectivity with up to 18 units, an 85-decibel loud siren paired with clear voice location alerts, and advanced photoelectric and electrochemical sensors to minimize false alarms while maximizing safety. Designed for easy installation and maintenance, it offers a trusted 5-year warranty from a brand with over six decades of home safety expertise. ## 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 β€” 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 | #13,437 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #31 in Smoke & Carbon Monoxide Alarms | | Brand | First Alert | | Built-In Media | AA Batteries | | Color | White | | Customer Reviews | 4.3 out of 5 stars 299 Reviews | | Enclosure Material | Plastic | | 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 | | Manufacturer Warranty Description | 10 Years Limited | | 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 | 1.0 Count | ## Product Details - **Alarm:** Audible - **Brand:** First Alert - **Color:** White - **Global Trade Identification Number:** 00029054002457 - **Item Weight:** 3.2 ounces - **Material:** FIRST ALERT SCO501CN-3ST ONELINK Battery-Operated Combination Smoke & Carbon Monoxide Alarm with - **Power Source:** Battery Powered - **Product Dimensions:** 2"D x 5"W x 5"H - **Sensor Type:** electrochemical,photoelectric - **Style:** Standard Detection ## Images ![First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack - Image 1](https://m.media-amazon.com/images/I/61CT1CiIWIL.jpg) ![First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack - Image 2](https://m.media-amazon.com/images/I/71niFh0vALL.jpg) ![First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack - Image 3](https://m.media-amazon.com/images/I/810IzjHPSAL.jpg) ![First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack - Image 4](https://m.media-amazon.com/images/I/61aPmupnrFL.jpg) ![First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack - Image 5](https://m.media-amazon.com/images/I/71D57xvrb1L.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 β€” 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. ### ⭐⭐⭐⭐⭐ Awesome Interconnected Smoke & Carbon monoxide detector (battery unit) with voice *by J***W on August 15, 2025* I've used previous iterations of this Battery operated (Wirelessly Interconnected) Smoke & Carbon Monoxide Detector (w/voice) in the past and this unit (SMCO500V) lives up to its predecessor. It's simple to use and setup (provided instructions are read - to pair the units wirelessly to work together). - They're Loud...but Not too loud - thankfully. - The mounts are a standard design to other smoke detectors (that can screw into the ceiling apparatus) and thus no new mounts were needed to attach these units in my home. - Battery-wise: If these units function like their predecessors - I'm sure it will last for several months on the eneloop AAs which I have been using for smoke detectors over the years. - Battery drawers are easy to pull open and get the batteries out. Simply push upwards from the bottom (of the battery drawer) to release and swap your batteries. - Haven't experienced any false Alarms with these particular units yet...but will update this review if I do. - All in all, a good device that lives up to its predecessor πŸ‘ ## Frequently Bought Together - FIRST ALERT SCO501CN-3ST Smoke and Carbon Monoxide Alarm, 120 V, White, Pack of 1 - FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button - FireAngel Combination Smoke and Carbon Monoxide Alarm for Home - SCB10-R, 10 Year Life, Dual Carbon Monoxide Detector and Smoke Alarm with Test and Hush Button - Combined CO and Fire Alarm - White --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/2215238-first-alert-smco500v-interconnect-battery-operated-combination-smoke-and-carbon](https://www.desertcart.sn/products/2215238-first-alert-smco500v-interconnect-battery-operated-combination-smoke-and-carbon) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-01*