Fireangel 7 year sealed battery digital carbon monoxide alarm
The co 9d is a digital 7 year life carbon monoxide alarm which provides an early warning of the presence of co in your home an internal power pack will power the alarm for 7 years in normal operating conditions the digital lcd display shows low levels of co down to 10ppm and also peak readings over the previous 4 weeks the display can be switched between co monitor and the integrated room thermometer