Purchased the ultrasonic possum repeller online a bit skeptically after trying other physical methods to deter errant possum on my porch wigth no luck and found the electronc automatic ultrasound gadget worked a treat. No more possum and no more possum poo! Recommend it to anyone and cant hear a thing so no nuisance to me or neighbours and only the possum cares.
No fuss and really works

I was skeptical at first, but the possum problem was so bad that I gave it a try and to my surprise it worked instantly. Within minutes of the device being switch on, the possums were scampering out of the trees within its range. Several days later they were fighting to re-establish their territory. My citrus trees are now showing signs of recovery and there hasn't been a possum within range for a month now. It has not affected my dog or cat and because it only operates at night, it doesn't scare off the birds. I highly recommend this to remove those unwanted possums from you yard.
It removed all possums within range and comes on automatically at night
I wish the range was greater than 14 metres

I bought this to try and save my veggies from marauding possums who have taken to stripping whole plants/trees overnight. Since installing it to cover the veg garden and fruit trees we havent lost any more produce and I've found no new Possum scat. They are still in the neighbourhood as you can hear them at night but they stay away from the area the Repeller covers! Im going to install another near th house to keep them from driving the dog nuts at night.

Great product, does exactly what it says it does.
Unobtrusive, silent, effective