First Alert Smoke and Carbon Monoxide Alar
*Power Type: Battery-Powered
*Sensor Type: Photoelectric
*Product Type: Smoke and Carbon Monoxide Alarm
*UL Listed: Yes
*ETL Listed: No
*CSA Listed: No
*Packaging Type: Clamshell
*Test and or Reset Button: Yes
*Number in Package: 1 pk
*10 year tamper-proof sealed lithium power cell
* Voice alerts
* Low profile design, silence feature
* Locks alarm to mounting bracket to prevent removal of alarm
* Photoelectric sensing technology and electrochemical CO sensing technology