I need to order these up. So have 2 core + earth to each location.
6 fire, 1 heat required
Looked at
https://www.safelincs.co.uk/radio-interlinked-smoke-alarms/
But they are like £70+ each!! ( with wireless comms between them )
Any other recommendations???
Also need a carbon monoxide detector ( for log fire ) assume this does not need to trigger the others for an alarm ....