Upgraded dual-sensor smoke and carbon monoxide alarm (4-pack)
Dual-sensor smoke and carbon monoxide detector with LCD display for battery and CO levels. Long sensor life up to 10 years. Some units may experience noise over time
Highlights
- long sensor life
- photosensor + electrochemical CO
- lcd real-time CO display
Pros
- dual-sensor protection for smoke and CO
- 10-year sensor lifespan
- LCD displays battery and CO levels
- easy to install
- includes batteries
Cons
- possible crackling noise after one year
- some units may experience functionality issues
Best For
Features
- Dual-sensor detection combining photoelectric and electrochemical sensors for smoke and CO
- Up to 10-year sensor lifespan compares to 3-year sensors in some units
- LCD displays battery level and real-time CO in PPM with indicator lights for CO and fire
- Dense gas-sensing holes reduce false alarms and improve reliability
- Battery-powered with included 3x1.5V AA batteries and mounting bracket for installation