![Couple who installed high-pitch 'mosquito' alarm to ward off racist teen vandals are now under investigation for noise nuisance | Daily Mail Online Couple who installed high-pitch 'mosquito' alarm to ward off racist teen vandals are now under investigation for noise nuisance | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2013/06/18/article-2343706-1A60A0E7000005DC-11_296x297.jpg)
Couple who installed high-pitch 'mosquito' alarm to ward off racist teen vandals are now under investigation for noise nuisance | Daily Mail Online
![The Mosquito Alarm is designed to repel youth away from areas by playing noise at a frequency most adults can't hear. : r/HostileArchitecture The Mosquito Alarm is designed to repel youth away from areas by playing noise at a frequency most adults can't hear. : r/HostileArchitecture](https://i.redd.it/qchepuk2agt51.jpg)
The Mosquito Alarm is designed to repel youth away from areas by playing noise at a frequency most adults can't hear. : r/HostileArchitecture
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