I want to install the above alarm and was wondering if it would still function if i chose not to use door contacts ?
What "arms the alarm", by that i mean when i come in what tells the alarm i have to disarm it, would it be the pir i have in the hall?
What "arms the alarm", by that i mean when i come in what tells the alarm i have to disarm it, would it be the pir i have in the hall?