I have motion detectors in my shop which sound off in the house. And motion lights at each end of the building.
I have the same... I have also installed an additional "screamer" in the workshop... backed up with RIO over the windows. Locks can be key locked from the inside in case they manage to crawl under the 5mm gap in the door to get in.
The "screamers" can be tolerated by most people for about 20 seconds, just enough time to code off the alarm at the master console... after the 20 seconds, most people tend to loose equilibrium and if they don't escape the noise, they become very unsteady and hard to carry with hands over the ears... run outside and scream out "hey thief"... the one that doesn't turn around is HE!
If the alarm goes off, SWMBO won't henpeck me for at least 20 seconds.
If your first cut is too short... Take the second cut from the longer end... LBD