Product Review
Intelligent Wire-free Smoke and Carbon Monoxide Alarm. Combination Photoelectric Smoke and Carbon Monoxide Alarm. With Voice and Wireless Interconnect Battery Operated. This alarm detects products of combustion using photoelectric technology and carbon monoxide using an electrochemical cell. Ten (10) years after the unit was installed, this unit will automatically alert you that it is time to replace the unit. This is called End of Unit Life mode. You do NOT need a home Wi-Fi system to use these units. Multiple wireless units create their own independent wireless alarm network.