Last edited by Kem
Friday, October 16, 2020 | History

2 edition of effectiveness of sonic outdoor warning devices found in the catalog.

effectiveness of sonic outdoor warning devices

Stanford Research Institute

effectiveness of sonic outdoor warning devices

final report. SRI project 831.

by Stanford Research Institute

  • 86 Want to read
  • 31 Currently reading

Published by U.S. Govt. Print. Off. in Washington .
Written in English

    Subjects:
  • Air raid warning systems

  • Edition Notes

    Includes bibliography

    StatementPrepared for Federal Civil Defense Administration
    ContributionsUnited States. Federal Civil Defense Administration
    The Physical Object
    Pagination36 p.
    Number of Pages36
    ID Numbers
    Open LibraryOL15478227M
    LC Control Number54060215

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    Staff of the Federal Trade Commission's Division of Enforcement today announced that they have sent warning letters to more than 60 manufacturers and retailers of ultrasonic pest-control devices, stating that efficacy claims about those products must be supported by scientific evidence.   Two of the three sites were used as controls, with no sonic net devices installed, while a third had the speaker. To test the effectiveness of the device, the researchers stood at a single point in each site for 30 minutes four times a week and counted the birds that flew into the test area.


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Effectiveness of sonic outdoor warning devices by Stanford Research Institute Download PDF EPUB FB2

Get this from a library. The effectiveness of sonic outdoor warning devices. [Stanford Research Institute.; United States. Federal Civil Defense Administration.]. The Sonic Nausea Device generates a unique combination of ultra-high frequency sound waves which soon lead most in its vicinity to queasiness.

It can also cause headaches, intense irritation, sweating, imbalance, nausea, or even vomiting. Hiding this device in your inconsiderate neighbor's house might put an end to their late-night parties/5(22). Additionally, the Federal Trade Commission has been warning consumers about ultrasonic pest control devices for decades, as manufacturers do not have the scientific evidence required to back up their claims of effectiveness.

What You Should Do if You Have a Pest Problem. All these devices can weaken the strength of the signal. To determine whether the problem is with the Sonic Alert equipment (broken or not) or with the house wiring: 1.

If the signaler is plugged into an outlet with other electrical devices, plug the signaler into another outlet by itself, away from all the other electrical devices.

Sonic Nausea is a small electronic acoustic generating device which can really turn one feet s stomach. It generates a unique combination of high-pressure sound waves which soon leads most in its vicinity to queasiness. It can also cause headaches, intense irritation, sweating, imbalance, and nausea.5/5.

Ultrasonic pest repellers are electronic devices that emit high-frequency sounds designed to repel, injure or kill household pests, such as rodents and insects. Whether they're actually effective at doing so has been disputed by testing labs and the U.S. Federal Trade Commission (FTC).

Inthe Federal Trade Commission sent a warning to manufacturers of ultrasonic pest control devices, demanding that claims of effectiveness must be backed up by scientific research. Thanks to the FTC intervention, package claims on ultrasonic rodent and insect devices are more understated than they used to be, and many product websites.

effective early warning systems. Each of the checklists is grouped under a series of major themes and includes a simple list of actions or steps that, if followed, will provide a solid basis upon which to build or assess an early warning system.

“Much has been learnt from. These deer prevention devices have proven records with exceptionally high customer review ratings.

We highly recommend any of the above electronic deer repellent devices. However, they are most effective when products from 2 or more categories are combined. The anti-bark device has many variations. And like any other device or gadgets, it's important to buy tested and certified devices only.

If you're looking for a high-quality and effective anti-bark device, then it's your lucky day for not only I will discuss, at great length, the importance of using an anti-bark device correctly, but I will introduce you to 9 of the safest and most efficient.

This page describes some very unique items generally categorized as "ultrasound" The ultrasonic receiver is a device that can detect sound waves that are normally beyond the range of human hearing, and then translate this signal to audible frequencies.

The ultrasonic generators are devices that create ultrasonic sound waves, which can be used in some novel ways such as a safety deterrent or. It is wise to carry road flags and/or triangular warning devices to be used when necessary.

When pulling off a highway, use your four way hazard lights as warning flashers, even if only to change drivers. Pull off the road way completely if at all possible to change flat tires or any other emergency needs.

Additional Safety Considerations 1. Sonic Devices For People. (Sonic collars, in contrast, emit sounds within our hearing range.) Manufacturers of these ultrasonic devices typically claim that they are safe and humane.

But are they really. View the Best Anti Barking Device with Ultrasonic Bark Control on the Market 1. Bark Silencer – Best Overall Choice.

GET 50% OFF. Enough is enough, and if you feel you are in desperate need of help to control a barking dog – this is the device you will want to turn to. An acoustic mirror is a passive device used to reflect and focus (concentrate) sound waves. Parabolic acoustic mirrors are widely used in parabolic microphones to pick up sound from great distances, employed in surveillance and reporting of outdoor sporting events.

Pairs of large parabolic acoustic mirrors which function as "whisper galleries" are displayed in science museums to demonstrate.

Guardline Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor & Detector- Best DIY Security Alert System (one Receiver + Two sensors) out of 5 stars 1, $ $ Sonic Devices For People.

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Ultrasonic devices designed to emit a high-pitched frequency unpleasant to dogs ears can theoretically stop nuisance barking when used appropriately. However, some vets indicate the devices are not typically reliable or consistent enough to be considered viable options, at.

Search the world's most comprehensive index of full-text books. My library. Anti Barking Device, New Bark Box Outdoor Dog Repellent Device with Adjustable Ultrasonic Level Control Safe for Small Medium Large Dogs, Sonic Bark Deterrents, Bark Control Device out of 5 .Sonic FREQS All-in-One 2-Way Keyless Entry Car Alarm Security System with Remote Start, 2 LCD Color Key Fob Remote Controls out of 5 stars 1 $ $ Effective Range Up to 50 Feet Outdoor Bark Control system that will automatically activate when this device detects barking sounds.

then it will emits ultrasonic sound. Just choose your desired range. Best for outdoor use.