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Real alarm · Ei Electronics · carbon monoxide

Ei Electronics: Three long beeps and a pause, repeating, red LED flashing

There may be dangerous levels of CO. Ei’s multi-sensor alarms use the same pattern for CO, so it tells you which emergency it is.

What you see
Red light
What you hear
Full alarm, three beeps then a pause, repeating

Do this first: the maker’s emergency instruction

Carbon monoxide alarm

Ei Electronics: open doors and windows if it is safe to, turn off all fuel appliances where possible, and leave the property with the doors and windows open. Get medical help at once for anyone with symptoms (headache, nausea) and say CO poisoning is suspected. Ring your gas or fuel supplier’s emergency number. Do not go back in until the alarm has stopped, and do not use the fuel appliances again until an expert has checked them (for gas, a Registered Gas Installer).

From Ei3028 / 3018 Alarms Instruction Manual.

Smoke alarm

Ei Electronics: a continuous alarm from a smoke or heat alarm may mean fire — if in doubt, always assume it is real. Check doors for heat and use another route if one is hot; crawl low under heavy smoke; get out as fast as you can without stopping to pack; meet at your prearranged place; call the Fire Brigade immediately on a mobile or from a neighbour’s house, for every fire however small; never re-enter a burning house.

From Products FAQs — Why is my fire alarm beeping? / Why is my alarm beeping? and Ei3028 / 3018 Alarms Instruction Manual.

What Ei Electronics says to do about this signal

  1. Follow Ei’s CO instruction (above). If in doubt, Ei says to assume it is a real CO emergency.

From Products FAQs — Why is my fire alarm beeping? / Why is my alarm beeping? and Ei3028 / 3018 Alarms Instruction Manual. If your alarm’s pattern is not exactly this, check the manual for your model: Ei Electronics models do not all use the same signals.

Other Ei Electronics signals

Real alarm on other brands

The same state sounds and looks different on each make — which is why a chirp pattern cannot be read without the brand.

Sources

Every line on this page comes from Ei Electronics’s own documents, read on the date shown. Nothing is taken from third-party code sites or other makes.