aico Ei141RC Ionisation Smoke Alarm. Needs to be connected to power supply. Uses 9V battery for backup. Unused, but about 6-7 years old.
This item (see datasheet for further information): https://www.aico.co.uk/product/ei141rc-ionisation-smoke-alarm/#downloads
Ei141RC Ionisation Smoke Alarm (Little Herberts GL53)
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