Smoke Detectors

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. Fri Jun 19 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. Mon Jan 05 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. Tue Mar 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. 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.

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

The 3-in-1 Explosive Gas & Carbon Monoxide Alarm from First Alert(R) warns against natural/methane, propane and carbon monoxide. The digital display makes for easy reading during an alarm or when any button is pressed. The alarm plugs into any standard outlet with no additional mounting necessary and comes with a line cord, which offers multiple placement options. The alarm also comes with a battery backup in the case of a power outage and utilizes an electrochemical carbon monoxide sensor for increased accuracy. Meets UL standards.

its an alarm -how excited can you actually get over it -lol??. Kimberly. Boston, MA. Tue Mar 10 2026