- 2 x AA Alkaline Replaceable Batteries (Included)
- Smart silence - silence your smoke alarm by momentarily pressing the test button, ideal for nuisance alarms
- Thermoptek Optical Smoke Sensor
- Loud 85Db Piezo Electric Alarm
FireAngel's Thermoptek Smoke Alarm with Escape Light is a battery operated device with a faster response to slow burning and fast flaming fires. It's bright escape light feature illuminates your escape route upon alarm.