February 25, 20197 yr Dear sirs, I'm about to order a complete Texecom hardwired alarm system and I would like some help. Firstly I already own and I have prepared the cavity on my aluminum doors/windows for this magnetic contacts (https://www.securitywarehouse.co.uk/catalog/intruder-alarm-c-36/door-contacts-switches-c-36_44/knightbiased-flush-pencil-single-reed-6core-4k72k2-brown-p-4544.html) My question to you is (by your knowledge) is there any chance of interfering with the aluminum material? Aluminum is not ferromagnetic but is paramagnetic metal. I would appreciate any input on this concern
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