"Magnet tamper" for surface mount contact?

["Bill" <bill190nospam@xxxxxxxxx>]

Is there a surface mount contact which has some sort of tamper device if the
magnet is unscrewed from the door? Manufacturer? Model number?

This would prevent the situation where there is a door which opens out,
there is a surface mount contact on the door frame, a surface mount magnet
on the door - then intruder attaches magnet to above contact in some manner,
unscrews magnet from door, then opens door outwards.

So unscrewing the magnet from the door or unscrewing the covering over the
magnet to then unscrew the magnet from the door would trip the contact...

FYI - This is when the intruder gains access through the ceiling or wall,
but then exits through a door.