"robert"
Interesting, thanks for the feedback. It is useful to know of successful
non-lethal deterrents. What appears to be the effective range/area?

According to the box, it detects foxes when they come within 40ft of the
front of the unit in an arc of 100 deg radius. Once activated, the alarm
continues while the fox is within 60ft, then stops. Yet another fox-free
night last night, by the looks of it!.....

Mark