Anti-Loitering Equipment
Low Cost Ultrasonic Generator & Mosquito Mk 4
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Have you had enough with Anti Social Behaviour, groups of youths hanging around? |
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Alternative Low Cost Option To The Mosquito That Works! |
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50 Metre Long Range Ultrasonic High Power Generator |
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| £94.99 | |
| This ultrasonic generator produces pulsating, loud aggressive sounds just like a siren. Teenagers find these very unpleasant and try to avoid them as far as possible. Teenagers and children do not perceive this sound as sound but do not feel good in this acoustic range and will normally leave that place. Simply just switch on when required. Sheltered location required, Eaves, Porch, shelf etc. You can even just sit it on a window ledge or hang it out the window when required. | |
| More Information about this product | |
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Mosquito Mk 4 |
Heavy Duty Cage |
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| £495 | £49.99 |
| The Mosquito MK4 is a weatherproof effective tool for dispersing groups of teenagers who regularly congregate in a location and behave in an antisocial manner. Maximum effective range 35 metres |
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| More Information about this product | |
| (BOTH PRODUCTS REQUIRE A MAINS 240V TO 12V REGULATED DC POWER SUPPLY) | |
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| £9.99 | |
| Mains Power To 12 Volt DC Regulated power supply (500 Milliamps)(1/2 Amp)(6VA) | |
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Ultrasonic High Power Generator

Technical Data
| Operating voltage12 - 14 V/DC (stabilized power supply or 12 V Battery > 12 Ah) | |
| Current consumption | max. 150 mA |
| Frequency range | approx. 14 kHz - 16 kHz. Pulsating like a siren |
| LED displays | one LED each for „Power On“ and „Sound Emission“ |
| Connections | for up to 2 additional loudspeakers |
| Acoustic range | Max. 100 metres, may be extended with additional loudspeakers |
| Loudspeaker | High-power ultrasonic loudspeaker with plastic membrane |
| Dimensions | approx. 140 x 65 x 37 mm |
| Fixing Method | 2 Fixing holes are provided |
| Fitting Location | Not waterproof - sheltered location required (Eaves, Porch, shelf etc) |
The Mosquito MK4 is a weatherproof effective tool for dispersing groups of teenagers who regularly congregate in a location and behave in an antisocial manner
Antisocial behaviour is one of the fastest growing problems in UK society and unfortunately there is little that the police are able to do to prevent it
If you have groups of teenagers regularly loitering near your property, causing criminal damage, putting off customers or even abusing customers and staff
Then the Mosquito MK4 anti-loitering device is the most effective way to put an end to the problem without confrontation!
Mosquito MK4 is widely used by police and local authorities, chain stores, independent shops and private individuals to protect their property from the effects of teenage antisocial behaviour
Mosquito MK4 works on low voltage and so can if required be installed by a competent DIY person in around 1 hour
Please ensure that proper precautions are taken when working with ladders
The system generates a pulsed, near ultra sonic tone at around 16KHz, close to the limit of the hearing range of people under 25 years of age
The sound, though not painful in any way, becomes highly annoying after 5 or so minutes exposure
The result is that most under 20s leave the immediate area, whilst the majority of those over the age of 30, because of natural age related hearing loss, either just hear, or, as in most cases, are totally unaware of any noise at all
The system is designed to be used for up to 20 minutes at a time.
The unit incorporates a 20 minute cut-off time to avoid unnecessary annoyance.
Maximum range is 35 Metres.