Kidde P4010DCS-W Wire-Free Interconnect Lithium Battery Powered (2-Pack) smoke alarm, white
- 10-Year Battery & 10-Year Sensor: This smoke and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly.
- saves you from constantly having to change batteries.
- an end-of-life signal will let you know when it's time to replace the unit for safety.
- Practical LCD Display: Clearly indicates real-time carbon monoxide (CO) concentration in the surrounding air, as well as the remaining battery life and working status of the alarm.
- if a CO concentration of 30-999 ppm exists for a certain time period, the screen will be backlit blue, and the LED indicator will flash red 4 times every 5.8 seconds.
- 2-in-1 Accurate, Reliable & Highly Sensitive Alarm: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each other.
- detects both fast and slow-burning fires, and instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms.
- provides the ultimate protection from 2 deadly threats, all contained in 1 unit.
- Simple to Use: Test/Silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur.