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The Google Nest Protect Smoke and Carbon Monoxide Alarm is designed with the latest technology to keep you and your loved ones safe. This smart detector alerts you to both smoke and carbon monoxide, providing voice alerts and smartphone notifications.
The split-spectrum sensor detects both fast and slow-burning fires, while the CO sensor monitors for carbon monoxide, a colorless and odorless gas. With its self-testing feature, you can trust that your alarm is always in working condition.
The Nest Protect also integrates seamlessly with other Nest products, enhancing your smart home ecosystem.
The Kidde Smoke Detector with 10-Year Lithium Battery (Model i9010) is designed to provide dependable smoke detection while minimizing maintenance. The sealed lithium battery offers a decade of uninterrupted power, eliminating the need for battery replacements and reducing the risk of deactivation due to battery removal.
This detector uses ionization sensing technology, which is effective at detecting fast-flaming fires. The design includes a hush button to temporarily silence nuisance alarms and a test button to ensure the unit is working correctly.
Its compact design makes it suitable for various locations in your home.
The First Alert SA303CN3 Battery-Operated Smoke Alarm is a straightforward and efficient smoke detector designed to provide essential fire safety for your home. This detector uses ionization technology to detect fast-moving fires, offering early warning to help you and your family escape safely.
It features a single test/silence button for easy operation and a low battery alert to notify you when it’s time for a replacement. Its compact design allows for effortless installation, making it an excellent choice for homeowners seeking a reliable and cost-effective smoke alarm solution.
The First Alert BRK 3120B Hardwired Smoke Detector with Battery Backup combines photoelectric and ionization sensors to provide comprehensive smoke detection. This dual-sensor design enhances the alarm’s ability to detect both smoldering and fast-flaming fires.
The hardwired installation ensures continuous power, while the battery backup provides reliability during power outages. The alarm features a loud 85-decibel siren, a test/silence button, and an easy-to-access battery compartment.
Its interconnectivity allows you to link multiple alarms, ensuring that when one alarm sounds, all interconnected alarms will alert, providing widespread notification throughout your home.
The Kidde 21026043 Combination Smoke and Carbon Monoxide Detector provides comprehensive protection by detecting both smoke and carbon monoxide in a single device. This unit features a voice alarm that clearly announces the type of hazard detected, whether it is smoke or carbon monoxide.
Its electrochemical CO sensor and ionization smoke sensor ensure precise detection of both types of hazards. The battery-operated design allows for easy installation without the need for wiring. Additionally, it includes a test/hush button to silence false alarms and test the unit’s functionality.
The digital display shows CO levels, providing real-time information for your peace of mind.
| Specification | Google Nest Protect | Kidde i9010 | First Alert SA303CN3 | First Alert BRK 3120B | Kidde 21026043 |
|---|---|---|---|---|---|
| Sensor Type | Split-Spectrum | Ionization | Ionization | Photoelectric and Ionization | Ionization and Electrochemical |
| Power Source | Battery or Hardwired | 10-Year Sealed Battery | Battery | Hardwired with Battery Backup | Battery |
| Dimensions | 5.3 x 5.3 x 1.5 inches | 4.5 x 4.5 x 1.5 inches | 5 x 5 x 2 inches | 5.6 x 5.6 x 2.3 inches | 5.6 x 5.6 x 1.8 inches |
| Weight | 1.4 pounds | 0.5 pounds | 0.4 pounds | 0.75 pounds | 0.8 pounds |
