ASPECTEKYard Sentinel Ultrasonic Animal Repellent, Waterproof Ultrasonic Cat Fox Repeller with Motion Detector, Pet Dog Deterrent, Rabbit Rat Scare for Garden Yard Field Farm, 4 Key Remote (UK Plug)

After having problems with crows/rooks and one particular small bird attacking my chimney stack, I ordered an ultrasonic bird repeller from Pest Clear. As that unit produced intermittent sounds, I bought another, so had two in the loft of the roof. This helped to clear the crows and & rooks away, until this spring in 2018.So realising that I needed try additional measures I had no choice to look around for something else. When I say I have no choice, these crows and rooks come to the chimney stack and vandalise it. At varying times from 6am to 7am in the morning from their roosts, they arrive at the chimney pots. There is this ‘bang, bang’ on the brick work as they fervently attack the chimney stack, then then follows crumbling noises and brick dust and pieces falling down the roof. If it wasn’t so serious, to see the damage of the first two rows of brick damaged in that chimney stack, one could relate it to the crows stealing Father Jacks glasses in Father Ted series, or more ominously the film the ‘Birds’ by Stanley Kubrick.So, initially I bought two units of the Yard Sentinel RC Ultrasonic Pest Repeller, setting BOTH to constant, full volume and then put them up in the loft of the roof as I had done with the ultrasonic bird repellers from Pest Clear. . After a couple of days, the neighbours thought at times there was a burglar alarm going off. MORE importantly it scared off these large birds, the crows and the rooks.Each unit goes through a cycle of emitting a variety of sounds, at different frequencies. Sometimes there is silence, so that can be the moment that crows and rooks WILL come back. The crows and rooks are smart, they are persistant as they fly around locally from tree to roof top, etc. Whilst two units could adequately complement each other during those quiet periods, I also knew that the crows and rooks COULD become immune to even the noise from two. So I ordered an additional four units, making SIX altogether in my armoury.SO, in order NOT to annoy or concern my neighbours, THREE units are positioned in one chimney, just above the fire place and another two in another chimney, in a similar fashion (It wasn’t big enough for three). Consequently I have one in reserve. I don’t use the fire places, so I can put these in the chimney safely. I have placed them in the upstairs fireplaces, rather than the downstairs fireplaces. The noise goes right up the brick chimney, to the chimney pots at the top.Trying to break the habits of the crows and rooks was never going to be easy, so I am NOT expecting instant results of them NOT returning. They keep coming back, BUT the noise drives them away AGAIN and AGAIN.The racket that FIVE of these units produces, on a 24 hour constant, FULL volume setting is detering the crows and rooks. It drives them off the chimney stack by giving them an enormous headache... I have read some of the comments from purchasers who state that these units don’t work. They do, it is just that you have to be persistent with using them and IMHO, understanding that you may need more than one...The crows and rooks keep returning, BUT they don’t stay VERY long. Eventually the crows and rooks pattern of behavior, their 'habits', will be broken, so they don’t visit my chimney stack any more. In the end they will forget about it and fly somewhere else. That is how you break the behaviour of anything bullying you, they FORGET about you and don’t bother you ever again!It is an unusual situation to be confronted with, BUT with these units, I believe that I am GOING TO WIN.

Total Rubbish

We have periodic issues with rabbits which come in and devastate the veg patch. This year I decided to use a field camera to determine whether these things work or not. And yes - they do. You can see the little %^%^%s scattering when it triggers and we've had no damage since.You need to read the instructions and set them up correctly. For dispelling bunnies I find the insect setting works best funnily enough. The back case design is diabolical. I find I have to squeeze the thing back on with a screwdriver. There are no clips or anything. That aside I'm very happy with the thing now I have visual proof the rabbits hate it.

There is a cat that visits my house daily and upsets my cats. I wanted something humane to keep it away so bought this.First thoughts: cheap looking but I didn't buy it for looks. Very easy to set up and get working although the back of it is a real pain to put on. The remote control works OK, even from upstairs.Just a shame it didn't keep the cat away.You can set frequency range and behaviour. Unfortunately whatever I chose had no effect on our unwanted visitor. None at all. It didn't repel my two cats either when accidentally left on, they ignored it completely.Basically, all this box did was make noises when the postman came to my front door.I don't recommend it.

We suffered from pigeons continuously fowling our seperate brick walled balconies and actually sleeping there! The sight of this mess was not nice and the smell was absolutely terrible, not to mention the time wasted cleaning it away on a regular basis. So, we searched for a deterrent and initially used plastic bird ban - this worked but become messed overtime and very ugly to look at. Then we discovered the Yard Sentinel RC Ultrasonic Animal Pest Repeller with Motion Detector. We gave it a try, using rechargeable batteries and setting it to motion detect mode on 24hr mode. To our amazement, there was a dramatic reduction in the fowling over the next week on both balconies. After a few weeks monitoring, the mess was virtually down to zero on both balconies. But then one balcony started to be fowled again - this was the one where the Sentinel was not situated and hence not fully covered by the Sentinel. So we moved the Sentinel to this balcony and positioned it so that it pointed towards the original balcony. Lo and behold, this balcony now remained clean, whilst the other balcony's adjacent window sill started to become fowled. Having gone through this exercise, we were now confident that the Sentinel was actually keeping the pigeons at bay - so much so that we bought another one to fully cover the other balcony and surrounding area. So, the Sentinel seems to have worked for us, but only time will tell. As an aside, we love animals and birds and value the motion detector function as this limits the time the unit is active, whilst we covered the strobe light with black tape, and turned the sonic sound volume down to zero so as not to annoy the neighbours.