None of them work long term.
It works but not in an area as big as specified.
Electronic devices are not effective long term.
It doesn't. The FTC has info on these scams at http://www.ftc.gov/opa/2001/05/fyi0128.shtm. Enter "Pest Repeller" in the FTC search window for more info.
Electronic devices are not effective long term.
An ultrasonic pest repeller for dogs may not be very effective in deterring unwanted pests from entering your home. While it may work for some pests, it may not be as effective for others. It is important to consider other pest control methods in addition to using an ultrasonic pest repeller.
Yes it's just ultrasonic sound, but they usually don't work long if at all so I would advise against purchase.
No. In the 1740s, the lower level was enlarged to be used as a road bridge. It was the last important work on the bridge. The Pont du Gard aqueduct underwent regular renovations, but was not rebuilt in the 1800s.
Yes, the alarm does work in silent mode.
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Rachel Carson wrote the book "Silent Spring," which was published in 1962. It is a groundbreaking work that exposed the harmful effects of pesticides on the environment, particularly on bird populations. Carson's work played a significant role in advancing the environmental movement and influencing the development of modern environmental policy.
The effectiveness of pet-friendly ultrasonic pest repellers in keeping pests away from your home varies. Some people find them to be effective, while others do not see significant results. It may work for certain pests but not others. It is important to consider other pest control methods in conjunction with using the repeller for best results.