DSC PG9307 recessed contact sensor

I’m interested in installing PowerG recessed sensor on our doors for aesthetic reasons.
Does anyone have access to the install manual? I don’t see one linked in the DSC product website.
I’m specifically concerned about the sensor-magnet max distance (my door and casing looks to be perhaps a 1/2 away from each other).

Weird DSC must have a bug on their site. Here ya go.