Battery Powered Carbon Monoxide Alarm First Alert Co400

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. Sat May 30 2026

The fire safety you trust is now connected and compatible. Add smart fire safety alerts to your home with the First Alert SC5 Battery Smart Smoke and Carbon Monoxide (CO) Alarm. This 2-in-1 device elevates your home's fire and CO safety whether home or away. Seamlessly integrate the SC5 Battery-Operated Smart Smoke and CO alarm into your home's safety ecosystem if you need to add detection or if it is time to replace. Interconnect when installing so when one alarm sounds, all compatible alarms sound throughout the home to help provide an early warning. This smart 2-in-1 battery-operated alarm offers advanced features and the latest smoke alarm technology. The alarm will sound voice alerts with Heads-Up warning in the event of a fire or CO emergency. Alerts will tell you the type and location of danger in the home to help you escape. The alarm will also send mobile alerts through the First Alert app to keep you informed whether home or away.The SC5 Battery Smart Smoke and CO detector is easy to install and maintain to help ensure your home and family are protected. Test alarms are working properly using the app or the alarm's single test/silence button. The SC5 alarm also provides in-app and audible notices when the alarm needs to be replaced or when the batteries are running low to help eliminate late-night chirps.

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.

Me gusta. Herminia. Bronx, NY. Mon May 18 2026

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. Mon Mar 09 2026

The product alerts you to dangerous carbon monoxide levels. 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 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.

Thankfully, I have not had it go off due to us not having carbon monoxide in the home, but we test it every week and it’s loud!!!. Diane. Terryville, CT. Tue Dec 31 2019

Be alerted to dangerous carbon monoxide leaks with the First Alert® CO410 Battery-Operated Carbon Monoxide Alarm with Backlit Digital Display. This carbon monoxide detector uses an electrochemical carbon monoxide sensor. An easy-to-read digital display allows for a quick view of current and peak carbon monoxide levels. This unit is powered by 2 AA batteries. It offers peace of mind even during power outages.

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. Sun Aug 03 2025

This dual-function alarm detects both smoke and carbon monoxide, with a clear digital display showing real-time gas concentration levels (PPM). When either gas is detected, the device emits a loud, continuous beep to ensure prompt alerts. Powered by 3 AA batteries (batteries not included — customers are required to supply their own due to national regulations). Designed with low power consumption for extended standby life, and features a low battery warning along with automatic sensor fault detection. A smart, reliable safety solution for any home or workspace.

I had for a while now and actually like them. Had some guest over that actually inquired about them said they were better than just the plain smoked detectors and I must agree.. Antoine. Bennettsville, SC. Thu Jun 18 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.

Venita. US. Sun Jan 04 2026

Less than half the diameter and offering the same protection, the First Alert® SM210M 10-Year Sealed-Battery Micro Smoke Alarm meets the latest industry standards using First Alert®'s Precision Detection advanced sensing technology. It reduces cooking nuisance alarms and provides early warning in the event of a home fire emergency. The small but mighty smoke detector is easy to install and doesn't require battery replacements. Instead, its end-of-life warning lets you know when it’s time to replace the alarm. No more low-battery chirps and multiple battery replacements!

The First Alert SMI110 10-Year Sealed Battery Smoke Alarm provides reliable protection and meets new industry standards. First Alert's Precision Detection advanced sensing technology helps reduce cooking nuisance alarms and provides an early warning. The 10-year sealed battery makes installation of the alarm easy and no battery replacements are needed for the life of the alarm.

Erika. Mon May 11 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.

Anne. Ponte Vedra, FL. Sun Jan 04 2026

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).

The First Alert® SMCO100 Battery-Operated 2-in1 Combination Smoke and Carbon Monoxide Alarm provides protection against both threats in a single alarm. Installation of the battery-operated detector is simple - no wiring is required. Add fire and CO protection throughout your home in minutes and help prevent unwanted removal of the battery or alarm using the optional locking features. Easily test the battery-operated combination detector using the single test/silence button to help ensure it is operating properly and silence false alarms. A low-battery warning will tell you when to replace the alarm battery. Detectors themselves should be replaced at least every 10 years. The end-of-life warning will help notify you when it's time to replace. See user's manual for information on how and when to test and replace detectors.

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.

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).

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. Erika. Fri May 15 2026

Upgrade your home security with the enhanced 2K Window Camera—an intelligent indoor monitoring solution built to protect your home and loved ones around the clock. Delivering crystal-clear 2K QHD live streaming and advanced full-color night vision, it captures vivid details day and night with a 104° wide-angle lens to cover more of your space. The upgraded back-illuminated sensor and F1.0 large aperture ensure bright, true-to-life footage even in extremely dark environments. With AI-powered motion detection that recognizes people, pets, and vehicles, you’ll receive accurate, real-time alerts when activity occurs. In emergencies, the in-app 911 shortcut allows instant connection to local services while sharing live video and location for faster response. The built-in two-way audio lets you communicate clearly with family members, visitors, or intruders from anywhere. Installation is simple with the included magnetic stickers. Compatible with both 2.4GHz and 5GHz Wi-Fi networks for a smoother, more stable connection and improved viewing experience. With U.S.-based cloud storage and local memory card options (sold separately), you can choose the storage method that best suits your lifestyle. With multi-device viewing, easy sharing for up to three accounts, and 24/7 online customer support, staying informed and protected has never been easier.

Just what I wanted - easily put on the inside of a window overlooking front and have perfect coverage. Love the fact someone can't remove this. Nite time coverage is great as well.. Nickie. Saint George, UT. Sun Apr 19 2026

Yellow

Solar Indoor&Outdoor Motion Sensor Alarm-2*130db Loud Siren Noise Maker,4 Modes,Mount on Ground or Fence,Red&Blue Motion Activated Strobe Light

John. Gap, PA. Mon May 19 2025

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.

Create a safer and more comfortable home environment with this 2-pack of 2K smart indoor security cameras. Designed with a glass-mount installation, these cameras can be placed easily on windows, office glass walls, fishtanks, or reptile terrariums—no drilling or tools required. Their compact, modern design blends seamlessly with any interior style while keeping your space under reliable watch. Enjoy crystal-clear 2K resolution and full-color night vision, ensuring every detail is visible both day and night. Smart motion detection recognizes people, pets, and vehicles, gently notifying you of any movement so you can feel at ease even when you're away. Compatible with both 2.4GHz and 5GHz Wi-Fi networks for a smoother, more stable connection and improved viewing experience. With U.S.-based cloud storage and local memory card options (sold separately), you can choose the storage method that best suits your lifestyle. In emergencies, the in-app 911 shortcut allows instant connection to local services while sharing live video and location for faster response. Real-time app access allows you to share viewing privileges with family or friends and check multiple live feeds at once, making it easier than ever to stay connected and protected. This camera set is perfect for anyone who wants peace of mind with a clean, hassle-free setup.

Quality is great and have been enjoying the service of alerts. Annamaria. Sat Feb 14 2026

Master pet messes with the cordless convenience of this easy-to-use handheld vacuum, designed to power through pet hair with ease. Experience up to 17 minutes of uninterrupted runtime. Designed for pet owners, the Pet Hair Eraser® Lithium Ion Cordless Pet Hand Vacuum includes innovative tools that make quick work of fur, dirt, and hard-to-reach messes. From tight corners to between couch cushions, the powerful crevice tool makes cleanup more convenient and the powerful removable nozzle is designed to extend your reach. Pet owners know little messes are inevitable. It doesn’t matter if it’s hair on the couch, food spilling out of the bowl, or litter tracked outside of the litter box – the BISSELL Lithium-Ion Handheld vacuums it all up. It’s lightweight, convenient, and built with a 14.4V lithium-ion battery that holds a charge for longer, so it’s ready to go to work as a hand vacuum when you need it. Triple Level Filtration helps improve this hand vac’s cleaning performance. It also has a large, easy-to-empty dirt tank that’s easy to clean between uses. The Pet Hair Eraser Handheld Vacuum comes with specialized tools, too, making it perfect for pet parents. The Motorized Brush Tool, Upholstery Tool, and Crevice Tool can clean up your pet in almost every area of your home.

Good quality and perfect for dog hair, steps, corners and hard to reach places. Justine. US. Sun Feb 01 2026

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.

The Wattz 2.0 Projection Alarm Clock with Wireless Charger is like a personal assistant packing tons of features into one stylish unit. Not only does it project time onto the ceiling and displays today’s date and room climate but is also your complete charging station. Fully-charge mobile devices with its 10W wireless cradle, A and C-sized USB ports, and includes attachments to charge your other gear such as smartwatch and earbuds. An organizer on the back of clock holds all your cords in place. Colored LCD display features auto-scrolling views, and adjustability options to fit your preferences. Extend options by adding on a compatible wireless temp/humidity sensor (sold separately) and project the outdoor climate on your wall.

This clock is very nice my son loves it. I was thinking about purchasing another one for my room. Genee. Sat May 16 2026

Automotive Smoke Machine Leak Detector:The ultimate companion for leakage testing! Our automotive smoke machine is designed to handle various diagnostic tasks: EVAP systems, fuel tank systems, exhaust and intake systems, etc. Ideal for cars, motorcycles, ATVs, and light trucks, this machine covers your diagnostic needs with ease.

Automotive Smoke Machine Leak Detector：The ultimate companion for leakage testing! automotive smoke machine is designed to handle various diagnostic tasks: EVAP systems, fuel tank systems, exhaust and intake systems, etc. Ideal for cars, motorcycles, ATVs, and light trucks, this machine covers your diagnostic needs with ease.

Automotive Smoke Machine Leak Detector：The ultimate companion for leakage testing! automotive smoke machine is designed to handle various diagnostic tasks: EVAP systems, fuel tank systems, exhaust and intake systems, etc. Ideal for cars, motorcycles, ATVs, and light trucks, this machine covers your diagnostic needs with ease.

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.

Protect your home with the innovative Water Alert System, offering unparalleled peace of mind! Featuring rapid leak detection and immediate alerts through an 85dB alarm and smartphone notifications, you'll be the first to know when water is where it shouldn't be. Designed for effortless setup in kitchens, bathrooms, basements, and beyond, its robust build stands up to humidity and varied climates. Plus, enjoy long-lasting performance and timely battery alerts, ensuring your home is always safeguarded. Don't wait for disaster to strike; invest in the Water Alert System today and secure your sanctuary!

Automotive Smoke Machine Leak Detector, EVAP Smoke Machine Leak Tester with Built-in Air Pump, Pressure Gauge and Flow Meter, Dual-Mode Diagnostic Leak Detector for Vacuum, Fuel, Pipeline Testing Comprehensive Leak Detection Suitable for Various Vehicles Built-in Air Pump Dual Detection Modes for Precision Use with Peace of Mind Complete Accessory Kit Operating Temperature: -4°F to 167°F / -20℃ to 75℃,Output Flow Rate: 8 L/min,Main Materials: Steel, Aluminum, Brass, Silicone,Detection Modes: Air Mode, Smoke Mode,Voltage: DC12V,Item Model Number: SD317,Product Weight: 9.0 lbs / 4.07 kg,Output Pressure: 19 - 23 PSI,Smoke Mode Current: 5.6 - 6.8A,Product Dimensions: 10.7" x 6.9" x 7.8" / 273 x 176 x 197 mm

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 helps improve 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 and multiple adapters and plugs. All components can be stored in the included bag.

Accurate Leak Detection:This professional automotive smoke machine leak detector quickly locates 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 steady and powerful smoke output. It features three gauges, a flow control knob, and a full set of adapters and cap plugs. All parts are stored in the included bag, and the added hook allows convenient hanging.

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.

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.

Automotive Smoke Machine Leak Detector:The ultimate companion for leakage testing! The automotive smoke machine is designed to handle various diagnostic tasks: EVAP systems, fuel tank systems, exhaust and intake systems, etc. Ideal for cars, motorcycles, ATVs, and light trucks, this machine covers your diagnostic needs with ease.

Green

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!

250-Piece Professional Survival Kit: From essential first aid items like bandages, gauze, and alcohol pads to emergency survival tools such as a first aid blanket, multi-tool knife, and flashlight, this kit has everything you need

Perry size. Jacob. US. Fri Apr 10 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 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.

Black

3 Small nightlights in the kit, especially suitable for use in stairs, corners, bedside, baby room, automatic on and off, convenient and power saving!

Slim, useful lights for dark spots These motion sensor lights are very handy. They are thin, simple looking, and the black finish makes them feel cleaner than a basic night light. The warm white glow is soft but still bright enough for stairs, hallways, closets, or a bedroom at night. I use these on a staircase that has a turn and sometimes gets dark at the turned stairway. They have remained charged for a month and always come on and are triggered from a good distance. I like that they are rechargeable and magnetic, so they can be removed easily when they need charging. The motion sensor works well, and the light looks smooth without harsh dots. The set of three is useful for covering a few different areas. Overall, a practical and nice-looking lighting option.. Amycaicos. Columbus, OH. Sat May 16 2026

81% of residential intrusions occur through the first floor. We understand the importance of supplementing primary entrance door locks with our high-quality auxiliary door security products.

Not bad but one of them was open. Anonymous. Wed Mar 11 2026

The First Alert® 1-A:10-B:C Class Home Fire Extinguisher is ideal for use in any household location like the kitchen or garage. This product is designed to fight common household fires including wood, paper, fabric, flammable liquid, and electrical fires. The rechargeable home fire extinguisher features a pull pin, with a safety seal, that deters accidental discharge or tampering. The safety product contains a color-coded gauge that is easy-to-read and provides accurate measurement making checking the fire extinguisher's pressure easy. If the fire extinguisher's pressure is low or it is used, it can be recharged by a certified professional. This rechargeable First Alert® Home Fire Extinguisher is lightweight and includes easy-to-follow, 4-step instructions right on extinguisher known as P.A.S.S. The label is chemical-resistant and waterproof so it won't deteriorate. Place the safety product in an easily accessible locations or use the mounting bracket to keep the fire extinguisher secure.

Awesome! Small, skinny and sleek. Perfect to mount in the kitchen. And the gray color causes it to blend nicely with any all white kitchen.. Brian. Irmo, SC. Thu Apr 30 2026

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.

Don't let work ruin your health anymore! During the soldering process, a large amount of harmful fume will be generated. Our fume extractor can quickly inhale and filter the harmful gases, particles, dust, and other substances generated during your work, preventing your health from being threatened after inhalation and making your work environment healthier.

Wake up naturally with a gentle sunrise glow and unwind at night with soothing sounds and soft lighting. Featuring dual alarms for weekdays and weekends, a dimmable display, and simple app-free controls, this sunrise alarm clock makes better sleep and easier mornings effortless.

Love it. It blends in nicely making it seem like it is a decoration rather than an electronic and the white noise and nature sounds are an added bonus. Angie. Thu Jun 04 2026

Matte Black

Upgrade you securty needs with this convenient smart deadbolt door lock that opens via Wi-Fi APP, - lighted push button keypad pincode and traditional key

Love it!. Anonymous. Tue May 26 2026

Wireless Door Sensor Alarm Set:This wireless door sensor alarm includes 1 receiver and 2 sensors, with a 656 ft / 200 m range in open areas and 164 ft / 50 m through walls. It offers 58 ringtones, 5 volume levels (0-110 dB), and LED indicators. Easy installation with strong adhesive, and battery lasts over a year. Ideal for home, store, or security needs.

Works great to let you know when someone opens a door! We needed for a business. Easy to install.. Tammy. Mon Feb 02 2026

Automatic flush-on-leave technology eliminate the need to touch surfaces. Control flushing with the intuitive remote or side buttons: choose between powerful full flush or water-saving half flush, saving up to 30% water without sacrificing performance.

So far so good. Loving this toilet which makes our bathroom look like a hotel! It’s fancy lighting and functions make this a great purchase for the price. Sriram. Sat Jun 20 2026

Designed for modern bedrooms, this compact bedside clock combines dual smart alarms with Everyday, Weekday, and Weekend modes, a gentle sunrise wake-up, and 20 soothing sounds to help you fall asleep faster and wake up naturally. The 4-level dimmable display doubles as a soft night light or can be fully turned off for sensitive sleepers, while the clear digital screen stays glare-free at night. With a 30/60/90-minute sleep timer, built-in USB charging port, and power outage memory that keeps your settings intact, it’s a reliable, clutter-free nightstand essential for adults, kids, and light sleepers.

I purchased this clock for two features - 1) offering four options to adjust the screen display brightness; and 2) the ability to choose from a variety of sounds for the alarm. The white noise feature is a bonus.. Kathleen. Blue Bell, PA. Wed Apr 15 2026