The Best Safety Detectors 2025

1. First Alert 9-Volt Smoke Detector

This smoke detector is ideal for ceilings and other places without wall plugs. The battery means that it will work even when the power is out. Due to state law, this item cannot ship to Oregon.

Wide openings for easy smoke entry Uses 9-volt battery 3-year limited warranty Low-battery signal Test button Item is not permitted for sale in Oregon

2. First Alert Carbon Monoxide Alarm

Keep your family safe from dangerous carbon monoxide fumes — even in a power outage. The First Alert Carbon Monoxide Alarm runs on AC power, but provides battery backup in case the electricity goes out. Ultra reliable, it features a single test/silence button that tests alarm functions and silences unwanted alarms.

Plug-in with battery back-up, works during power outages One button to silence or test alarm functions Low battery silence quiets low battery alert without affecting alarm operation Covers only one wall outlet Loud 85-decibel alarm Low battery warning End of alarm life timer alarm chirps when it is time to replace, should be replaced every 5 years for maximum protection 3.3 in. height x 4.75 in. width x 2 in. depth, 0.43 pounds UL Listed Uses 2 AA batteries, included White

3. First Alert CO600 Carbon Monoxide Alarm, AC Plug-In Electrochemical Sensor

First Alert Plug In Carbon Monoxide Alarm. Easy plug-in installation with silence feature, test/silence button and alarm indicator lights. Plug-In unit. Silence Test/Button. Covers only wall outlet.- SKU: HSTZ6164

Features: No installation necessary, just plug it in. No batteries necessary Easy to use

4. Kidde 900-0113-02, Nighthawk White, Digital Display AC Plug-in, Electrochemical Carbon Monoxide Alarm

The AC/DC Kidde Carbon Monoxide and Gas Alarm provides you with protection during emergency situations and power outages. It shows the level of carbon monoxide present in the air and helps you prepare for an evacuation if needed. The carbon monoxide gas detector can be placed in any AC outlet. The gas sensor in the alarm also detects levels of methane and propane in the air at the simple touch of a button. The digital display is easy to read and shows the exact recorded levels of carbon monoxide. The explosive gas alarm can be used in most any business or residential space easily. You just plug it in and it is ready to start protecting you from buildups of invisible gases. The unit has a memory that can recall the highest levels of gases recorded, helping ensure your constant safety.

Kidde 900-0113-02, Nighthawk White, Digital Display AC Plug-in, Electrochemical Carbon Monoxide Alarm Protects you and your family from two deadly threats: carbon monoxide and explosive gas Digital display shows the level of carbon monoxide the unit is sensing Peak Level Memory recalls the highest CO concentration detected Two alarms in one: detects both carbon monoxide and explosive gas Easy installation in any AC wall outlet, with options for direct-plug, 6’ power cord, or tabletop unit

5. Kidde Night Hawk Combination Smoke/CO Alarm With Voice/Alarm Warning

The Combination Kidde Nighthawk Smoke Alarm with Voice/Alarm Warning provides two important safety devices in a single unit. It requires no wiring, is easy to set up and is battery operated to protect you and your family, even during a power outage. The Kidde combination smoke/CO alarm features two LED lights and includes a chirp signal and test/reset button that you can push to easily verify that it is functioning properly at any time. It provides warnings that are spoken with a loud volume, helping it alert you during sleep. This carbon monoxide sensor alarm also eliminates confusion as to which danger you are being alerted to (either carbon monoxide or smoke dangers) through the spoken feature. It also has a low-battery indicator that lets you know when it's time to replace the batteries, so you can ensure the device stays in operation. Fires are more common than any other disaster that strikes a family at home and can become deadly in minutes, so every second counts. The sooner you hear the alarm, the sooner you will be able to get you and your family out safely. The Kidde Nighthawk Smoke Alarm makes it easy to stay in the know, making it a practical choice for maintaining the safety in your home.

Kidde Night Hawk Combination Smoke/CO Alarm with Voice/Alarm Warning: Hush button Nighthawk carbon monoxide alarm uses 2 AA batteries (included) Easy installation UL listed Available in a single, pack of 3 or pack of 6

6. First Alert 120-Volt AC Hard-Wired Smoke Alarm with Battery Backup Item#171423 Model# SA9120BPCN-6 UPC#029054001672

Hardwired 120-Volt AC Smoke Alarm with Adapter Plugs The First Alert Hardwired 120-Volt AC Smoke Alarm with Adapter Plugs can be instrumental in protecting your family and your home in the event of a fire. This hardwired smoke detector acts as an alarm wired directly into your home's electrical system. Intuitive additions such as a side battery backup drawer ensure that your alarm will perform in the event of a power outage. The inclusion of adapter plugs removes the stress and burden of replacing other non-First Alert branded detectors without rewiring.A mute feature has been included to quickly silence nuisance alarms, while a single button accesses the functionality of your alarm. Convenience and overall accessibility have been addressed with the ability to integrate up to (12) other First Alert hardwired alarms. The installation process has also been rendered even easier with the addition of a universal mounting bracket as well as tamper proof locking pins. The First Alert SA9120BPCN 120-Volt AC Smoke Alarm meets UL standards and features a 10 year limited warranty.

First Alert 120-Volt AC Hard-Wired Smoke Alarm with Battery Backup Item#171423 Model# SA9120BPCN-6 UPC#029054001672

7. First Alert Battery Photoelectric/Ionization Dual Sensor Smoke Alarm

Brand Name: First Alert Power Type: Battery Sensor Type: Photoelectric/Ionization Product Type: Dual Sensor Smoke Alarm Packaging Type: Clamshell Test and or Reset Button: Yes Number in Package: 1 pk UL Listed: Yes CSA Listed: No Volts: 1.5 V Battery Size: AA AA batteries included

SMOKE ALARM DUAL SENSOR

8. First Alert Battery-Powered Carbon Monoxide Alarm

First Alert Battery-Powered Carbon Monoxide Alarm safeguards your home from dangerous carbon monoxide leaks.

Battery-operated alarm works even during power outages Single button tests the unit and silences unwanted alarms Permanent sensor never needs replacing 9-volt battery included

9. Smoke and CO Alarm, Battery Operated

The First Alert SCO7 Battery-Operated Combination Smoke and Carbon Monoxide Alarm with Voice and Location delivers both smoke and carbon monoxide detection in a single unit. Equipped with a photoelectric smoke sensor and an electrochemical CO sensor, it accurately detects smoke produced by smoldering fires and carbon monoxide leaks from multiple sources.

Programmable Voice and Location Battery Operated for Easy Install Detects Both Smoke and CO Electrochemical CO Sensor

10. Kidde 900-0136-003 Nighthawk Smoke Alarm

The Kidde i9010 is a 10-year, sealed battery operated smoke alarm featuring Hush, Alarm Memory, and a self-activation mechanism that makes installation simple and easy. The alarm will automatically activate when it is attached to the mounting bracket; there are no pull-tabs, no switches--everything is automatic. The sealed-in board-mounted battery will power the i9010 unit for its complete 10-year life. No replacement battery will ever be needed, and an End of Life alert indicates when it is time to replace the alarm. At the end of the alarm’s 10-year life, deactivation of the alarm is just as easy. Using a tool such as a small screwdriver, a deactivation switch removes power from the alarm and renders the battery safe for disposal. As an added safety mechanism, the alarm lockout feature prevents a deactivated unit from being mounted back on the mounting bracket. The i9010 also features Hush™ technology, allowing consumers to temporarily silence nuisance alarms, and an Alarm Memory feature that alerts the user via rapidly flashing LED lights if the alarm has sounded since the last time the test/reset button was used. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home.

Sealed-In Lithium Battery, no battery replacement required over the 10 year life of the alarm Self activation- Alarm automatically activates when attached to the mounting bracket Alarm Memory-Rapidly flashing LED alerts user if the alarm has sounded since the last time the test/reset button was used Smart Hush- Will temporarily silence nuisance alarms and will not allow hush mode to be activated unless the unit is in alarm mode Test/Reset Button- Tests unit's circuit operation and resets memory after an alarm condition occurs End of life warning- Alarm chirps every 30-45 seconds indicating the alarm is in need of replacement Tamper resist- (when activated upon installation) effective in preventing someone from removing the unit from the mounting bracket LED- A flashing red indicator light with four modes of operation: standby, alarm mode, hush mode and memory set 10 year long life 9 volt lithium battery power cell included Red, normal operation LED 40ºF to 100º F temperature range 5% to 95% relative humidity 5" x 1.5" 1 lb