Siterlink Smoke And Carbon Monoxide Detector Combo With Voice Alert, D

2 in 1 Protection: The combined smoke and carbon monoxide detector is equipped with an electro-optical smoke sensor and an electrochemical CO sensor that operate independently of each other. It detects both smoke and co, making your home safer by providing the ultimate protection against two deadly threats. | Voice Alarm: The e voice system can help you quickly understand the danger, orderly evacuation. Carbon monoxide (CO) alarm pattern is four quick beeps with voice