Yard Sentinel Outdoor Ultrasonic Animal Repeller

Su función la hace, no tenemos ni un pájaro, pero eso de ultrasonido...¡solo sirve para los sordos! (con perdón para los sordos) ¡Que escándalo forma! Mi marido lo instaló sin avisar, y parecía que estaban torturando a un pájaro y a eso le sigue una alarma y luego una sirena... eso si, no hay un pájaro que tenga güevos de acercarse, las cosas como son, efectivo es...

Buen producto, sin problema para instalar, desde que lo coloqué no ha habido presencia de animales nocturnos.

I ordered this item for a friend who lives in a remote rural area. She was troubled by bears that come around to her cabin. This product sends them running! She had me order two more of them for her.

Vor allem mit der Fernbedienung eine super Sache ! Vorher hatte ich ähnliche Geräte und die musste ich immer wieder vom Erdspieß ziehen um die Teile ein oder auszuschalten ! Jetzt gehört das endlich der Vergangenheit an ! Ein Knopfdruck auf die Fernbedienung und gut iss ! Die Wirkung ist auch absolut in Ordnung seitdem ich das Teil habe gibt es keinerlei Probleme mehr mit dem Marder und der Katze, die mir immer in der Nacht ständig quer übers Auto gelaufen sind am schlimmsten war es bei Regen ! Dementsprechend sah mein Auto aus inkl. der Kratzer die sie Verursacht haben beim hochspringen oder durch das runterspringen vom Auto . Auch die Antenne hat gelitten da der Marder gerne daran geknabbert hat da wahren auch schon 4 fällig ! Aber gut bin voll zufrieden und es tut was es soll nämlich Plagegeister fernhalten und das funktioniert sehr gut !

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.