System type: 10-year sealed battery – standalone.

Aico Ei208 Battery Carbon Monoxide Alarm

Standalone battery-powered CO alarm with a sealed 10-year lithium battery and AudioLINK+ technology.

• Proven electrochemical CO sensor

• Sealed 10-year lithium battery

• AudioLINK+ data extraction

• Easy-fit twist-on base

• Standalone alarm — does not interconnect

Manufacturer information: https://www.aico.co.uk/homeowner/product/ei208-battery-co-alarm/