They might be cheaper, but then you have to either have a cable coming in the door of the freezer, or drill a hole in your $10k freezer’s wall.
In my country you’d definitely need to have video footage to accuse someone of abusing aerosols at work, but yes in some less civilised places a general pattern might be enough to accuse someone and hope they weren’t just going in there to do their job.
They might be cheaper, but then you have to either have a cable coming in the door of the freezer, or drill a hole in your $10k freezer’s wall.
In my country you’d definitely need to have video footage to accuse someone of abusing aerosols at work, but yes in some less civilised places a general pattern might be enough to accuse someone and hope they weren’t just going in there to do their job.
I’m betting this is the US, where you can be fired for literally no reason what so ever.