Smoke Alarm. White Color

This smoke alarm is designed for living areas and hallways. Photoelectric smoke alarms have a sensing chamber which uses a beam of light and a light sensor. When smoke enters the chamber it changes the amount of light that reaches the sensor and the alarm sounds when the smoke reaches a certain level. They are best at detecting slow burning fires which burn for hours before bursting into flame.
Works on Battery
Extra loud 85db warning tone.
Mounting hardware included.SD5YSM-04