10-year Standalone Smoke Alarm Sealed Battery

Standalone Smoke Alarm (hereinafter referred to as the device) is
designed to continuously monitor smoke concentration. Adopting new
split-spectrum sensor and a built-in high-volume buzzer, it responds
quickly and becomes highly sensitive with stable performance and low
false alarm. Once the surrounding smoke concentration reaches the
alarm value, it will promptly send out visual and audible alarm signal to
remind the user to take immediate measures.