Mid · Carbon monoxide alarm

Ei Electronics Ei208

≈ €30–40

Our addition: not on the official lists

Buy at Amazon

Electrochemical CO sensor, sealed 10-year battery, EN 50291.

Key specs

Electrochemical sensor, sealed 10-yr battery, EN 50291.

Power

Sealed 10-yr lithium

Why we picked it

Fire-service favourite in UK/IE.

Trade-offs

EU/UK stores.

Brand

Ireland (Ei Electronics)

Where to buy

Amazon

Part of L1: 72-hour emergency kit.

Some links are affiliate links. No sponsored placements. Prices are approximate. Reviewed 19 October 2026.