ISOTRONIC® Ultrasonic Bird Repeller device, Battery powered portable Bird Deterrent, Pack of 3 Pcs.

They don’t work! I had them installed on 5th of March.I placed 2 repellers within 2 meters of pigeons’ nesting location under my solar panels and they have not been put off continuing to nest. The five or six pigeons that form this group still perch on the panels and wander round the roof and all roost under the panels at night. They are currently building this year’s nest!A unit was placed attached to the soil stack (picture included) above the panels intended to generally discourage pigeons from the roof. A further unit aimed under the panels was placed on the roof in a waterproof housing. I had to pay a man £50 to instal the repellers 17 feet up. I have requested a refund from the seller.I shall update this feedback with news of the sellers response in 10 daysMy reply to the company care team:You seem to be ignoring the fact that an Isotronic device is also directed under the panels and the pigeon stood happily within 5 feet of the device located on the soil stack. I shall update my recent review posting a commentary on your lack of concern for customer dissatisfaction when it is reported to you. The fact that you have a higher percentage of 1 star reviews than 5 star reviews, when brought to the attention of prospective future buyers, might help to persuade them not to waste their money

Very effective and good value.

Having read some of the other reviews it seems I am not alone in the opinion that these things just do not work! I have placed the units in several places now over the last year or so and there is absolutely no difference. The last straw was when I put fresh batteries in (6 x AAA in each unit, with fiddly screws to negotiate) and then put a unit on the shed roof. Red light coming on/off occasionally, so all functioning OK, then low and behold two hours later a pigeon was sitting next to it quite happily soaking up the sun, and contemplating in which part of the garden to leave its next deposit.Complete waste of money.Reading some other reviews perhaps it only works on pigeons in France...?!

Thought they didn’t work at first but after several weeks I think there are fewer pigeons. Think the tree is too tall for where we are able to place the deterrents.

One of 3 doesn’t work, so price is higher for 33%…. It is to expensive.

Doesn't really work

Great fast delivery 👌

Ordered the set of 3. 2 have bad switches, so need to press the switch in to power on. One works but don't think it has any effect of the birds. I installed it on top of the bay window where the bird is trying to nest and they still come there.Tried with the device under a tree with lots of birds and they were not deterred.Completely useless ...