Cat watchUltrasonic Deterrent

Definitely works, although the batteries need replacing quite frequently - we're going to invest in a battery charging station and rechargeable batteries because of this.Has drastically reduced the amount of cat faeces deposited in our garden by the neighbour's cats, who previously treated our garden as the neighbourhood toilet - pretty disgusting and annoying considering we do not own any cats ourselves, yet had to keep clearing up after them! God-knows what they were feeding them too, since what was left was truly revolting.However, thankfully these devices have made our lives much easier! They are expensive compared to similar products from other manufacturers, but we went with these because they are the only ones certified by the RSPB as not being harmful to any other species - we didn't want to harm birds or the resident hedgehog.They do work, but like I said make sure you replace the batteries when they fail, otherwise the cats will just continue being a nuisance. Also, be aware that you may need to wait a week or two before you see improvement, AND remember that they need a direct line of sight in order to be effective - shrubs/trees/structures will block them.

Had my garden re done in autumn, so lots of bare soil which local cats used as a toilet. We were picking up sometimes 10 or 15 poo’s at a time.Got one of these and after about a week there was only 1 or 2 poo’s. After a few more weeks they don’t come to poo at all anymore!The rain affects the sensor so I made it a bonnet with a plant pot which has solved the problem. I’ve had it since October ‘23 and haven’t had to change the battery yet, despite the sensor being triggered at least 2 or 3 times a day as we walk past it to our cars.

Does not work, I found a cat just lying down in front of it next to the flower bed. It was activating because I could hear clicking from the device.Not worth £60.Should of just bought more spiked mats.

This was a replacement for one I bought a few years ago for my front garden. Quite a few cats around leaving little presents for me when the old one broke so needed a replacement. It does stop them by aiming it towards where they usually enter the garden. Funnily it doesn’t seem to affect my dog at all when she goes out there. Well worth the money I think due to its long life!

We've had bird murdering cats (at least four different ones) entering our garden and terrorising the numerous garden birds that frequent the feeders. No matter how much water we squirted at the cats or how often we chased them out of the garden, they'd always come back.Having read reviews of this type of device I was hopeful but not convinced of a successful outcome.... but, I thought it could be a neat solution to our problem... so I bought two units (it was either going to be a resounding success or an expensive failure!)I chose a location where I knew the cats hid and waited for the birds and directed the first unit at this point. I also identified one of the favourite ingress points and directed the second unit at it. Within a few hours the most prolific bird killing cat entered the garden and immediately sniffed around the ultrasonic units. It paced around and then sat in it's normal place beneath the bush. Every so often it would get up and walk over to the unit, sniff around then walk back.I'm happy to be wrong, but I got the impression the cat was uncomfortable. After about 10 minutes, the cat walked off. It returned an hour later, sniffed around and left.At the time of writing this, roughly a week as passed since I saw this cat and observed its behaviour. I've not seen it or any other of the frequent cats since. So, I'm on the verge of reporting these ultrasonic cat deterrents a resounding success.However, I don't spend my entire day waiting for cats so there's a chance that I might have missed something. To sate my curiosity, I placed a Bat detector near one of the units and tuned it in on the transmitted ultrasonic frequency. My thinking was that any activation would create an audible (to me) warning and I'd catch a cat skulking around. So far... nothing. No cats. Not one.The documentation that came with this device says it's not a quick fix, but takes time to work. I think I'd agree with that. Cats don't flee for their lives, but are made to feel uncomfortable over a period of time. Hours, minutes, days... different cats will react differently.So make of that what you will. If you have a cat problem, my experience suggests these ultrasonic cat deterrents might actually work.

In general, this device does keep most of the cats out of the garden without scaring the birds. However, at this price it could be better made: it's by no means waterproof and needs to be dried out from time to time. Tiny insects and spiders like to congregate inside the case. Also, the battery life is pretty poor, though it could be run from an external 12V battery pack. The optional mains adaptor is all very well but not a lot of use in the garden, where it's likely to be a long way from a mains socket. The first device (bought from the RSPB) packed in after a couple of weeks but its replacement has been OK. As a retired electronics engineer, might I suggest making the deterrent a bit bigger and using larger batteries? Or maybe incorporate a solar panel?

Bought this to deter a neighbourhood cat from using two adjacent planter boxes as a toilet, much to the detriment of the plants therein, and still to be convinced that the device is effective since cat activity seems to have reduced but not yet ceased altogether. The instructions do say that it may take a while for the cats to learn that the deterrent is here to stay so time will tell. The item is expensive for what it is (although way cheaper from Amazon than from RSPB for example), is made of cheap plastic and is by no means weatherproof, allowing damp in via the battery cover. As I say, time will tell...