A question concerning alarm sensors

I've posted a (suitably anonymous) plan of my ground floor showing my uninformed choice of motion sensor locations 1-5 and a door contact at

2. See

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   The blue dots are the sensors and the red lines are radiators.

Could any experts out there kindly tell me if I've made a good choice of sensor location, please, or whether alternative positions would be preferable. Have I got enough sensors?

Many thanks

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Posted 5 years ago by Old Dad Smith in Electronic Security in UK

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