Feature: This type is highly effective in detecting dense smoke and slow-smoldering fires, such as burning furniture or electrical wiring, before flames break out.
2. Power and Battery
Battery Type: Operates with a replaceable 9V battery or a built-in lithium battery lasting up to two years.
Low Battery Alert: The detector emits an intermittent chirping sound when the battery is low, reminding the user to replace it.
3. Audible and Visual Alarm
Sound Level: Not less than 85 dB at a distance of 3 meters, producing a sharp sound loud enough to wake a sleeping person.
Visual Indicator: A red LED light flashes periodically to confirm that the detector is operating properly, and flashes rapidly when smoke is detected.
