X-SENSE - 10-Year Battery Smoke Detector with Photoelectric Sensor and LED Warning Light 1 Pack - White

Detects the sound of your existing smoke and CO alarms and alerts you instantly. Ring Sensors are built to break free from traditional systems with no need for hubs or the limited reach of WiFi. On Amazon Sidewalk, these devices stay connected for reliable protection day and night.1 Add more devices anytime to expand your coverage as your home security needs grow.

10-year sealed battery dual-sensor smoke alarm provides ultimate protection by combining ionization and photoelectric technologies to detect both fast-flaming and slow-smoldering fires. Precision Detection advanced sensing helps reduce nuisance alarms from cooking while still delivering early warning of real fire emergencies. Sealed lithium power cell removes the need for battery changes or low-battery chirps, and a single test/silence button simplifies operation and maintenance.

Protect your home and family with the professional-grade reliability of the X-Sense SD21 Smoke Detector. Powered by a sealed 10-year lithium battery, this alarm delivers continuous, decade-long protection without the hassle of annual battery replacements or late-night low-battery chirps. It features an advanced photoelectric sensor that maximizes early detection of smoldering fires while its 24/7 intelligent self-testing system constantly verifies battery and circuitry health. Equipped with a clear, 3-color LED status indicator, this alarm provides instant visual peace of mind so you always know your home is secure at a glance. Ideal for bedrooms and hallways, this compact unit installs seamlessly in minutes for top-tier safety compliance.