Pestbye® Waterproof Ultrasonic Repellent Cat Repeller and Scarer with Ground Stake (Battery Powered)

I bought a different branded one at first, which didn't work. I thought I'd try at least another one before giving up. It's worked since the moment I installed it! We've had a big problem with cats going to the toilet down our alley for over a year and this has completely kept them away.

Worked well for ages , now seems we’ve got a deaf cat round here somewhere ……. Thing

* Physical This device is small, boxlike, and its green colour means it blends into the garden and is not visually intrusive. It is made to be stuck into the ground on a spike at around 20 cm from the ground. It has a blue light that shows when the sensor is operational. It has two rotary dials to set the controls; one for frequency to optimise which animals you wish to force away from your garden , the other to make the draining battery work for longer. * How it performs The sensor means that it saves batteries by only working when the sensor detects an changing object in its roughly 90 degree angle at upto a few meters away. The differing animals need slightly differing frequencies, and this can be adjusted according to the instructions that come with the device . The batteries (4*AA) only need changing around every 12 months or so. To replace its batteries, you require a small screwdriver to release its four screws protecting plate. Its pretty robust, and stands up to the weather this year (2015) * Summary I am amazed that the local cats that used to use our garden as their own toilets have not touched our garden for months. I have seen cats jump on bins to avoid the invisible and inaudible field - for most humans over teenage anyway - it projects from this unit. Although i can hear a quiet, intermittent, scratchy - type noise from this device as its blue sensor is operating. But, - Dec 2015 - we now we have a mouse in the house! So have brought this device inside to drive the vermin out. We put traps down, notice where the mouse leaves its freshest droppings, then put the device in this area. We needed to change the setting of the device to select the most annoying noises to a mouse. We have deduced that this device was probably submerged in the recent heavy rain weather and this is the reason why its sensor does not now work properly. We have bought another 'Cat Repeller.' We have contacted a pest control officer to help us with this issue this week. Believe it or not, when changing its settings to repulse a mouse or rodent it makes them disappear and it works with these too! It's been over 10 days since last seeing the mouse. We are monitoring this situation.

Having read the reviews I had high hopes for this product which were crushed all too quickly. As soon as the batteries were inserted I could hear the unit squeaking and clicking at me, which probably should have been the first indication that things weren't quite right. After all the very definition of ultrasonic is a frequency above the range of the human ear. The three cats, who were sat in the kitchen at the time, looked on with interest mainly although the youngest (the one who is my nemesis) did seem the nearest to being upset by it and did eventually leave the room. I took this to be the sign that I'd found the ideal frequency and set the two units strategically in the borders giving me maximum range and waited. For 12 hours not a single visit occurred and I felt victory would surely be mine. The motion sensors picked up everything, in fact the range on the sensors appears to be the best function on them, however the claim that they work on an infrared level I would have to question as they would often be set off by the movement of a leaf or the flap of the laundry on the washing line. It was not long however before Sheldon (my tabby tormentor) came sniffing around ready to do his grotty little business in my tiny plot of paradise yet again. Aware that the instructions state that it will take 2-4 weeks for cats to take the hint I have persevered. These are not cats that have grown up untrained in the use of the litter tray and nor is their tray left to fester until it stinks out the entire house. No these are cats whose conveniences are probably kept cleaner that most humans are and short of chasing after them all day with a pristine tray and a bucket of moist wipes to clean their little botties with after there is little more we could do to make their motions more comfortable. So it is with a heavy heart and a huge sense of disappointment that I have disassembled these units after several weeks of patient anticipation and experimentation with the frequencies. Even before removing the batteries and packing them away I have experimented with the cats in the kitchen once again. This time one cat got so upset he sat down nonchalantly, raised his left leg in the air and casually licked all that the vet was kind enough to leave him with. Strangely though it is my thirteen year old daughter who is happiest to see the back of these items as she couldn't sit out in the garden without them giving her a headache. So there you go, it's a one star rating from me. Partly because they won't let you rate it a zero and partly because if your teenagers are leaving little parcels in your petunias then this will surely stop them.

A plain brown, unbranded box is what the device arrives in, and instructions are of little value, as they do not adequately cover setup and construction. If it were not for other Amazon reviewers, where the frequency settings are ranged for different pests is unclear. Unpacking and setup. In order to put the device together, you will need a micro-screwdriver set (hobby or for reading glasses size) - Philips head. Start by inserting 3 AA batteries (not supplied) and then placing a gasket (seal) inside the battery compartment lid, before placing the back on. The back needs to be secured by 4 tiny screws. TIP: These do not go in fully, as the machining for the holes is poor. Do not force them, as you will end up screw-heads burred and unlikely that you will get the case open to change the batteries. I had to leave the screws about halfway in..it seemed enough to secure the seal, but did not look right. If you are not using the wall mount screw option, you will need to assemble the spike for ground use. Ensure you have the orientation correct for the brackets, spike and that all the holes align. It is not immediately obvious and of course, no instructions. Operation: There are no numbers on the dials, so I set my frequency, low (as cats are in the "2" range according to reviews). The sensitivity I set was just over a third of the dial, which covered approx 40ft of the area I needed it to. When body heat is detected, you may just hear the pulse (I know I am sensitive to high frequency). It is uncomfortable and I could just about feel the discomfort when I was hanging out washing and in range of it. You can tell the unit is working, as a blue led lights up in the sensor. Since installation, no cat-crap... so I am happy with the value compared to the gel and scented repellents, which only work until a rainy few days have passed. As for how long it lasts in the UK winter and damp, I will report back. I am not confident is is put together well enough to survive damp and water intrusion on the electronics. Worth £15 for effectiveness. Not worth the full price of £30 for the cheap construction. UPDATE: June 2014 - The device suffered water damage and the electronics began fail, draining the batteries in 24 hours. This is a failure was 6 months after purchase. Amazon is quickly replacing the item, as Primrose (UK arm of the product supplier/manufacture) did not want to entertain a manufacturer's replacement and stated that they don't do repairs. The shame is that the product does work. As soon as I noticed the cat-poop on my lawn early this spring, I figured the cat had gone deaf or the product was failing. If they make a more robust casing and use better materials, this could be an excellent product.

I cannot sing the praises of this item highly enough. I bought 3 about 4 weeks ago and now have a cat-muck free garden again, and it's wonderful. I have suffered with cats at a number of different houses and tried everything from orange peel to pepper dust to expensive concoctions and never had any real success. I set these up as instructed and it would appear the job is done! I have a dry dusty area under some huge conifers at the bottom of my garden and when my neighbour got two cats they decided it was an ideal place to use as their toilet. I protested to my neighbour and we almost fell out over it, but we couldn't stop the cats soiling, and to make matters worst other local moggies began to follow suit. At least four cats were using the entire area as one big litter tray and the mess was horrendous. I daren't let my grandchildren play in the garden any more (I know from first hand experience that cat and dog faeces can carry some very nasty diseases and parasites) and I could not dig over my flower beds or plant any veg because the cats would use any freshly turned soil with relish. All in all my enjoyment of my garden was spoilt. I saw these and decided that the reviews were good enough to give them a try - after all, I was getting desperate. They arrived within a couple of days so I set to and raked all the disgusting muck up (for the umpteenth time) and cleared the area completely, installed one of these at either end and Hey Presto! No more cat poo! Well, almost none. We had one moggy that was a bit more resilient than the rest but I just turned the frequency up a bit and even he gave up after a few more days! It says you may have to persevere for a few weeks with them before they have an effect but that is not my experience, they've worked almost from the off. I dug over a bed to put some strawberries in , and installed my third repeller there to stand guard over it, and it remains poo-free! Batteries are lasting well too, and they're only some old rechargables that won't work my camera any more! Yes, the battery installation could be easier than messing about with 4 small screws, and yes the instructions are a bit naff (print off the product details on Amazon - they are much better than the instructions!) but other than that these items are a Godsend. I've just ordered another in readyness for digging over a veggie bed, so I've now spent about £70, but it's been worth every penny to get my garden back! I hope they work as well for you.

I was dubious about this working but so far really happy with it. We've had a cat pooing in the same spot in our garden since we had artificial grass put down. The first night the device was put up the cat entered the garden but left without doing anything. I've not seen it back since and we've had a poo free garden for about a week. The only improvement for me would be if it had an on/off button. Even with the sensor turned all the way down it still goes off when it detects movement so we do have to turn it around when the kids are playing otherwise it gets annoying. An on/off button would fix this without messing with the settings or moving it. But overall really pleased so far and hope it continues working.

Super easy to assemble. Not too much of an eye sore. I have moved house and my front garden keeps being covered in cat feces and I am beyond annoyed with this. Since setting this up, I have not had a single cat on my property. It spiked into the ground really easily and has different settings of frequency, depending on the size of animal etc. Has been in all weathers and so far waterproof. Good strong quality and I cannot fault this product!