Smoke Detectors

Install convenient 2-in-1 protection with the First Alert SMICO110 10-Year Battery Combination Smoke & Carbon Monoxide Alarm. This combination smoke and carbon monoxide alarm meets new industry standards is easy to install, and doesn't require battery replacements for a decade. 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.

Great smoke carbon monoxide detector. Installation was easy and I appreciate that the battery lasts ten years.. Michelle. Portage, OH. Sun May 31 2026

Enhance Your Treasure searching with the Professional Metal Detector for Adults & BeginnersVersatile Detection Modes: Switch effortlessly between All Metal, DISC, Memory, and Jewelry modes for aimed searches, whether you're looking for tokens, gold, jewelry, or general metal objects.High Accuracy & Pinpoint Function: Find hidden finds with confidence using the high-precision pinpoint feature, which enables you to locate objects quickly and accurately, minimizing unnecessary digging.Clear LCD Display: The easy-to-read screen provides real-time information on aim ID, depth, and battery status, ensuring you stay informed throughout your search.IP68 Waterproof Coil: Take your adventures to beaches, riversides, and wet environments—this detector features a waterproof search coil for reliable outdoor use.Ergonomic & Adjustable Design: Enjoy comfortable treasure searching with an adjustable shaft and lightweight, ergonomic construction, appropriate for all heights and extended use without fatigue.Stable Anti-Interference: Advanced technology reduces false signals and ensures stable performance in various terrains, from parks and fields to historic sites.Headphone Compatibility & Backlit Screen: Use the built-in headphone jack for quiet detection and utilize the backlight for easy viewing in low-light conditions.Whether you're a beginner or an experienced enthusiast, this professional metal detector is perfect for uncovering tokens, gold, jewelry, and other valuables. Start exploring and unlock the excitement of discovering hidden finds in your own backyard or beyond!

Love it! It’s been great taking to the beach! I say to use light weight!. Debra. Leesburg, VA. Mon Aug 17 2026

The First Alert SMI100 Battery-Operated Smoke Alarm is available in a convenient two pack. The SMI100 smoke alarm is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This battery-operated alarm is easy to install and the front access battery compartment makes for easy battery replacements.

Tammy. Stuart, IA. Fri Jul 03 2026

The Moen Flo Detector is a WiFi-enabled moisture sensor that can be placed near sinks, appliances, and other water-risk areas in your home. When it detects water where it shouldn’t be, the Flo Detector sends an immediate alert through the Moen Flo App, and can automatically trigger the Flo Shutoff to turn off your water. Most leak detectors stop at the alert, but the Flo Detector goes further. The moment it finds moisture, it sounds an audible alarm, emits a blinking LED light, and sends a real-time notification through the Moen Flo App so you know about water and moisture, whether you are home or away, before it becomes a problem. Pair the Flo Detector with the Moen Flo Shutoff for complete whole-home coverage. When the two work together, the Flo Detector triggers the Shutoff to automatically close the moment moisture is found. Stay in control from anywhere with the Moen Flo App, and add a FloProtect plan for extended warranty coverage and insurance deductible support. Water damage is the most underestimated threat inside a home; more common than fire and more costly than theft. Moen Flo exists to change that. We prevent loss, one drip at a time.

Looking forward to getting it installed and set up.. Russ. Tempe, AZ. Wed Mar 26 2025

Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup & Voice Alerts. Interconnects with most First Alert and BRK hardwired alarms. When one alarm sounds, all compatible alarms sound up to 12 smoke alarms and 6 other CO/heat alarms).

Jaime. Sat Aug 29 2026

The First Alert SMCO210 Sealed 10-Year Battery Combo Smoke and CO Alarm with Slim Profile Design uses First Alert's Precision Detection advanced sensing technology and meets new industry standards. This 2-in-1 alarm provides convenient protection against both fire and carbon monoxide (CO). The alarm is also equipped with a 10-year sealed battery to eliminate the need for battery replacements and low battery chirps. 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.

Perfect!. Craig. Post Falls, ID. Thu May 14 2026

Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(Battery Not Included)

The SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup utilizes First Alert's Precision Detection technology and meets the latest industry standards. Easily install and interconnect multiple detectors together to create an alarm system throughout your home. First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

Anthony. Eatontown, NJ. Sat Mar 21 2026

The First Alert SMI100 Battery-Operated Smoke Alarm is easy to install and features First Alert's Precision Detection advance sensing technology. The front access battery compartment makes for quick battery replacements and a low battery warning will advise when it's time to replace. Discourage unwanted removal of the battery or smoke alarm using the optional locking features. Use the convenient test/silence button on the front of the smoke alarm to check that it is operating properly and silence false alarms. An end-of-life warning will advise you when it’s time to replace because alarms don't last forever. Effortlessly install the CO400 Battery-Operated Carbon Monoxide Alarm throughout your home for reliable CO protection in minutes. Operation is simple. Test the CO alarm using the single test/silence button. The low battery warning will notify you when it's time to replace the alarm's battery, which is quick process due to the front access battery door, and an end-of-life warning will alert you when it's time to replace the alarm all together.

working good no problems easy installl. Jack. Prescott, MI. Sat Jul 25 2026

The SM200 Battery-Operated Smoke Alarm meets the latest industry standards featuring First Alert's advance sensing technology in an easy to install, slim profile alarm. First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

Elan. Wed Jul 29 2026

The First Alert Carbon Monoxide Plug-In Alarm with battery backup features an electrochemical CO sensor to alert you to dangerous levels of carbon monoxide. This carbon monoxide detector plugs into any standard electrical socket to monitor CO levels in your home.

We are very happy with our recent purchase, as well as all of our past purchases. I would highly recommend Wayfair to my friends and family.. Dale. Rochester, MI. Fri Apr 10 2026

Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup. Smart Interconnect, interconnects with most First Alert and BRK hardwired alarms. When one alarm sounds, all compatible alarms sound (up to 12 smoke alarms and 6 other CO/heat alarms).

Accurate Leak Detection:This professional automotive smoke machine leak detector is designed to quickly locate leaks in EVAP systems, vacuum hoses, intake passages, turbo piping, and exhaust systems. Air Mode pressurizes the system to check sealing, while Smoke Mode visually reveals leak points. Dual air pumps provide stable and powerful smoke output. It includes multiple adapters and plugs. All components can be stored in the included bag, and the added hook allows convenient hanging for easier viewing.

The First Alert SMI100 Battery-Operated Smoke Alarm is available in a convenient two-pack. The SMI100 smoke detector is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This battery-operated alarm is easy to install and the front access battery compartment makes for easy battery replacements.

Great!!. Robin. US. Mon Aug 04 2025

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.

Accurate Leak Detection:This professional automotive smoke machine leak detector is designed to quickly locate leaks in EVAP systems, vacuum hoses, intake passages, turbo piping, and exhaust systems. It improves vehicle diagnostics efficiency. Air Mode checks system sealing, while Smoke Mode visually identifies leak locations. Dual air pumps provide steady and powerful smoke output. It includes a pressure gauge, flow meter, flow control knob, and multiple adapters and plugs. All parts are stored in the included bag.

The 2-pack First Alert carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor to detect carbon monoxide. The battery-powered design of this personal carbon monoxide detector means your space can be monitored for dangerous carbon monoxide gas. Simply insert the included 9-volt battery and the carbon monoxide detector is ready to go. When CO levels become elevated, a loud 85-decibel alarm alerts you to the threat. Designed to be simple to use, the CO detector has just one button that silences or tests the unit, as well as an end-of-life timer that lets you know when it is time to replace the device.

Everyone should order these. Keep yourself and family members safe. Had carbon monoxide in my home and these save lives. Thank you wayfair.. Denise. Floral Park, NY. Wed Jul 15 2026

Common Leak Check Solution：This automotive smoke machine leak detector covers low- and mid-pressure testing needs for routine inspections. It helps diagnose emissions-related check engine lights by testing EVAP or vacuum systems at low pressure. It also locates small intake leaks using mid-pressure output. Basic adapters are included for common applications. All components store in the included bag, and the added hook allows easy hanging for better visibility.

CO₂ Control Made Simple for Every Environment: Experience streamlined CO₂ control with our carbon dioxide monitoring controller. Dual infrared sensors provide stable measurements, and intelligent day-night sensing automates CO₂ supply. Switch between plant and human modes with ease, ideal for greenhouses, classrooms, or labs.

Accurate Leak Detection：This professional automotive smoke machine leak detector is designed to quickly locate leaks in EVAP systems, vacuum hoses, intake passages, turbo piping, and exhaust systems. Air Mode checks system sealing, while Smoke Mode visually identifies leak locations. Dual air pumps provide steady and powerful smoke output. It includes a pressure gauge, flow meter, flow control knob, and multiple adapters and plugs. All parts are stored in the included bag, and the added hook allows convenient hanging.

This plug-in electrochemical explosive gas and carbon monoxide alarm features a backlit digital display, this explosive gas, and CO detector plugs into any AC outlet with no additional mounting hardware needed.

It's an alarm -it seems to work -haven't had a chance to truly try it out -which is good -so that is all I have to say about that lol. Kimberly. Boston, MA. Tue Mar 10 2026

CO₂ Control Made Simple for Every Environment: Experience streamlined CO₂ control with our carbon dioxide monitoring controller. Dual infrared sensors provide stable measurements, and intelligent day-night sensing automates CO₂ supply. Switch between plant and human modes with ease, ideal for greenhouses, classrooms, or labs.

Spot problems from finicky dishwashers, questionable pipes, or low spots in uneven flooring. This targeted solution transforms nagging worry into simple awareness—one notification at a time. Start monitoring where it matters most—under sinks, behind appliances, near leak sources, and more. This system puts home awareness in your hands, ready to expand as your needs grow. Complete coverage for everyday leak risks. Monitor washers, water heaters, basement corners, and other spaces that love to surprise you—catching minor drips before they become major issues. Our most comprehensive early-warning leak detection system transforms awareness into action. Multiple water, temp, and humidity sensors help you catch issues before they become those colorful four-letter moments. Purpose-built for basements and utility rooms where water doesn't play by the rules. The sensor detects leaks wherever they wander—because water damage rarely stays put.

[This review was collected as a part of promotion]. Love how this device spots the leaks right away and alerts me instantly! It's made keeping track of my quirky old pipes way easier.👍. Sanjay T. Fri Sep 25 2026

Accurate Leak Detection：This professional automotive smoke machine leak detector is designed to quickly locate leaks in EVAP systems, vacuum hoses, intake passages, turbo piping, and exhaust systems. Air Mode checks system sealing, while Smoke Mode visually identifies leak locations. Dual air pumps provide steady and powerful smoke output. It includes a pressure gauge and multiple adapters and plugs. All components can be stored in the included bag, and the added hook allows convenient hanging for easier viewing.

Precise EVAP Leak Detection：This low-pressure automotive smoke machine leak detector is engineered for accurate diagnosis of sensitive EVAP and vacuum systems. It helps detect leaks without the risk of over-pressurization. Adjustable flow and a dedicated flow meter provide clear visual feedback during testing. The included EVAP adapter enables direct and targeted diagnostics. All parts store in the included storage bag. The unit rests securely on flat surfaces, and the compact body includes a handle for easy carrying.

CO₂ Control Made Simple for Every Environment: Experience streamlined CO₂ control with our carbon dioxide monitoring controller. Dual infrared sensors provide stable measurements, and intelligent day-night sensing automates CO₂ supply. Switch between plant and human modes with ease, ideal for greenhouses, classrooms, or labs.

Great. Ira. Northfield, NJ. Sun Jun 28 2026

This Hard-Wired Thermistor Heat Alarm is a great add-on for crawl spaces, laundry rooms, garages, bathrooms, kitchens, or other applications not suitable for smoke alarm installations. Features advanced rate-of-rise sensing technology. The alarm sounds if either the temperature reaches 135° Fahrenheit or the temperature rises more than 15° Fahrenheit in one minute. Exclusive IR remote control test/silence feature provides unparalleled convenience. It is a performance rich solution that includes numerous safety enhancers to ensure the maximum in overall protection. This piece features a near effortless installation process and is easily maintained. The utilization of rate-of-rising temperature sensing and a microprocessor that drastically reduces the number of nuisance alarms make this an ideal addition for any number of settings. A test/silence button and low battery warning have also been included to ensure the maximum in the peace of mind. This alarm can also be interconnected with up to 12 other compatible smoke alarms and six compatible devices that include: bells, horns, repeaters and door closers. Should one unit trigger an alarm, all of the smoke alarms in the series will alert your surroundings. A power indicator will reveal with alarm in the series initiated the disturbance.

Have to send back not what I wanted. Flora. Sat Nov 16 2024

Precise EVAP Leak Detection：This low-pressure automotive smoke machine leak detector is engineered for accurate diagnosis of sensitive EVAP and vacuum systems. It helps detect leaks without the risk of over-pressurization. Adjustable flow and a dedicated flow meter provide clear visual feedback during testing. The included EVAP adapter enables direct and targeted diagnostics. All parts store in the included storage bag. The unit rests securely on flat surfaces, and the compact body includes a handle for easy carrying.

CO₂ Control Made Simple for Every Environment: Experience streamlined CO₂ control with our carbon dioxide monitoring controller. Dual infrared sensors provide stable measurements, and intelligent day-night sensing automates CO₂ supply. Switch between plant and human modes with ease, ideal for greenhouses, classrooms, or labs.

Our products feature solid materials and meticulous craftsmanship, delivering quality that stands the test of time for true durability. We also maintain affordable pricing with outstanding value, allowing you to enjoy reliable, high-quality items at a reasonable price—truly worth every penny.

Every home has a blind spot—the gate your two- or four-legged Houdini tests when you're at work, the sliding glass door that guests never latch properly, or the attic hatch that pops open on windy days. The Contact King Alert System targets that single access point with precision monitoring that transforms uncertainty into instant awareness. The 40-inch cable that provides flexible placement— whether monitoring your mailbox from inside, tracking a crawlspace entry, or knowing when the outdoor storage box gets opened. It's the one spot where you need to know even if you don't see Spot run. Combined with the Temperature and Humidity Sensor, you're not just monitoring access—you're maintaining environmental awareness too. Start with one critical location now, expand your system whenever you're ready.

The First Alert CO400 Carbon Monoxide Alarm utilizes an electrochemical carbon monoxide sensor to detect carbon monoxide. This carbon monoxide detector is battery operated, making it portable and easy to use, even in the event of a power outage. When carbon monoxide levels become elevated, a loud 85-decibel alarm alerts you to the threat.

Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup. Direct wire-in with 9V battery backup. Hardwired with battery backup for protection during power outages.

Love it. Michelle. Sat Jul 12 2025

The First Alert SM100V-AC Interconnect Hardwire Smoke Alarm with Battery Backup and Voice and Location Alerts meets the latest industry standards and is equipped with First Alert's Precision Detection advanced sensing technology. Battery backup provides protection during power outages and superior features to help provide an early warning and guide your escape to safety. First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

The First Alert SM210V 10-Year Sealed Battery Smoke Alarm with Voice & Location Alerts helps guide your escape to safety. Utilizing First Alert's Precision Detection advanced sensing technology that complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency, the SM210V provides reliable and convenient protection.

Safety first right? Glad to have a battery that won't beep once a year!. Amy. Madison, WI. Tue May 19 2026

The SMCO200V Battery-Operated 2-in-1 Smoke Alarm & Carbon Monoxide Alarm provides reliable protection against both threats. Alarm features voice and location alerts and meets the latest industry standards. First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

This First Alert carbon monoxide alarm features a 10-year built-in lithium battery for continuous monitoring during the life of the alarm, and uses an electrochemical carbon monoxide sensor and an 85-decibel alarm to alert you to CO threats. The advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, such as faulty fuel-burning appliances, blocked chimneys, and generators running inside or too close to homes. Because CO evenly distributes itself, it's important to have a CO detector on every level and in every bedroom of your home. This easy-to-use alarm features a digital display that shows ambient temperature as well as peak CO levels. The detector's stylish design looks great on top of a dresser or table.

Love the product… Easy to setup…Test Alarm feature is also very helpful.. Vamsi. US. Mon May 15 2023

Easily install the First Alert SMCO200 Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design. The alarm is half the depth of a standard alarm and provides reliable 2-in-1 smoke and carbon monoxide protection. Meets new industry standards with First Alert's Precision Detection advanced sensing technology. 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.

Reliable Carbon Dioxide Monitor for Indoor and Outdoor Environments: Monitor CO₂ levels effortlessly with our carbon dioxide monitor. High-accuracy infrared sensing ensures stable readings across different concentrations. With long-lasting battery power of 72-120 hours on standby and intuitive operation, it is ideal for outdoor spaces, offices, classrooms, and labs.

Good. Ginger Mamma . Sun Jun 28 2026

Interconnect Hardwire Smoke Alarm with Battery Backup. Interconnects with most First Alert and BRK hardwired alarms. When one alarm sounds, all compatible alarms sound (up to 12 smoke alarms and 6 other alarms). Smoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires. End-of-Life Warning, Precision Detection, Battery Backup, Hardwire Interconnectivity, Hardwire Quick Connect Plug Included.

Kathleen. Conway, SC. Sat Feb 28 2026

Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts. Voice Warning with Location, voice tells what the danger is and its location. Smoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires.

Accurate Leak Detection：This professional automotive smoke machine leak detector is designed to quickly locate leaks in EVAP systems, vacuum hoses, intake passages, turbo piping, and exhaust systems. Air Mode checks system sealing, while Smoke Mode visually identifies leak locations. Dual air pumps provide steady and powerful smoke output. It includes a pressure gauge and multiple adapters and plugs. All components can be stored in the included bag, and the added hook allows convenient hanging for easier viewing.

Works perfectly. Great tool to have!. Wanda. Euless, TX. Tue Aug 04 2026

The First Alert Plug-In Electrochemical Carbon Monoxide Alarm alerts you to dangerous carbon monoxide. This carbon monoxide detector operates on a dual-power system with battery backup for continuous monitoring, even in the event of a power outage. The backlit digital screen tells you at a glance what the carbon monoxide and power levels are. The CO monitor also features a convenient test and silence button and an end-of-life timer that lets you know when it is time to replace the unit.

Like it reads—plug it in. Located it outside my furnace room.. Sydney. California, MD. Sun Jun 30 2024

Illuminate your path to safety with the First Alert SM210L 10-Year Sealed Battery Smoke Alarm with Safety Path Light. The SM210L smoke alarm also features First Alert's Precision Detection advanced sensing technology and meets new industry standards. The 10-year battery means no battery replacements for a decade.

Reliable Carbon Dioxide Monitor for Indoor and Outdoor Environments:Monitor CO₂ levels effortlessly with our carbon dioxide monitor. High-accuracy infrared sensing ensures stable readings across different concentrations. With long-lasting battery power of 72-120 hours on standby and intuitive operation, it is ideal for outdoor spaces, offices, classrooms, and labs.

Install convenient 2-in-1 protection against both smoke and carbon monoxide with the First Alert SMICO105-AC Hardwire Interconnect Smoke and CO Alarm with 10-Year Battery Backup. Meets new industry standards and can interconnect with other compatible detectors to create a whole home alarm system to help provide an early warning. 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.

This was exactly what I needed. Julius. Converse, TX. Tue Nov 18 2025

Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup & Voice Alerts. Easy install & battey replacement, add protection in minutes. A battery pull tab is also included to keep the batteries fresh until the home is occupied.

Stacy. US. Thu Oct 23 2025