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Mosquito Mk4 Ultrasonic Youth Deterrent

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  • Mosquito Unit
  • Optional Timer
  • Optional External PIR
  • Optional Security Cage

In Stock
Your Price:

£419.00Ex VAT (You save £128.00)

Security Cage:
Optional Timer:
PIR (motion trigger):

Product Description

The Mosquito MK4 is the most effective tool for dispersing groups of teenagers who regularly congregate in a location and behave in an antisocial manner. Don't let this affect you any longer!

At ONLY £419 this unit is the cheapest in the UK now with a fantastic free connection kit worth £20.00. What are you waiting for...

The new Mosquito MK4 Multi-age now has two functions. Either set the device to kHz to disperse groups of troublesome teenagers OR set it to 8 KHz to disperse people of ANY AGE from areas where loitering can be an issue such as subway terminals, car parks or any areas where people feel insecure at night due to other people loitering in the shadows etc.

• Both tones usually take effect within 10-15 minutes
• Can be activated by timer
• 20 minute Auto cut-off

New Features

• Increased maximum range to 40 meters (130 feet)
• 2 frequency settings, one for kids and one that will affect people of any age
• 4 step volume selection
• 20 minute auto cut-off
• Additional chip set for continuous running available for specific applications
The Mosquito is designed for external use only, and has a range of around 40 meters with a 60 degree angle of spread.

Working on a 12v transformer, the system requires only a standard 13 amp domestic power socket and can be mounted with a security cage by a non-qualified person in little over an hour.

The Mosquito is best installed flush to a wall with the additional extra of a security cage for protection. Optional brackets are provided when installing on an angle, however this will disrupt being able to use the security cage.

How Does the system work?

The Mosquito is essentially a sounder unit that emits a very high (ultra-sonic) tone that is completely harmless even with long term use. The unit has been tested by NPL to ensure it complies with HSE report 343/2001.

The system generates a pulsed near ultra-sonic tone at around 17 KHz, which is close to the limit of the hearing range of people under 25 years old. This sound whilst not painful in anyway, becomes highly annoying after 5-10 minutes exposure. The result is that the majority of under 25's leave the immediate area whilst the majority of those over the age of 30 because of natural age related hearing loss either only just hear or in most cases are totally unaware of the noise.

Set the system to 8 KHz to disperse people of ANY AGE from areas where loitering can be an issue such as subway terminals, car parks or any areas where people feel insecure at night due to other people loitering in the shadows etc.

The system is designed to be used for up to 20 minutes at a time. A timer is included with the unit. There is also a manual over-ride button that will switch the system on between programmed times if required, for a period of 20 minutes.

I am not a teenager, will the Mosquito annoy me?

This is very unlikely and research has shown that the majority of people over the age of 25, have lost the ability to hear at this frequency range. It should be borne in mind, however, that the unit usually has the desired effect – moving the crowds away – within just a few minutes, at which time the unit can be turned off. So even if you are able to hear the noise to some degree, you would not have to put up with it for long.

What about dogs?

Although dogs have very acute hearing and are easily able to hear at this frequency, extensive testing shows that it does not appear to bother them.

How quickly does it work?

The longer someone is exposed to the sound, the more annoying it becomes. Field trials have shown that teenagers are acutely aware of the Mosquito and usually move away from the area within just a couple of minutes. The field trails also suggest that after several uses, the groups of children / teenagers tend not to loiter in the areas covered by the Mosquito, even when it is not turned on.

What is the range of the Mosquito?

The effective range is around 40 meters

Who installs the Mosquito?

The unit has been designed to be easily fitted – as easy as fitting an exterior spot-light – and is supplied with a power supply, time switch, cable, fitting kit and comprehensive instructions. If you are not confident in fitting an electrical device, we recommend that you use an electrician or alarm fitter. A professional of this nature should not take more than 1 hour to complete the installation of the unit and we would suggest that this should cost you around £60. Please note this unit like all electrical components is bought as a DIY product. But we recommend that if you are not used to installing such devices that you seek a professional installer. CCTVdirect are not liable for units that are fitted incorrectly.


The Mosquito MK 4 is encased in an anti-vandal housing and incorporates a range of additional functions. These are:

• Continuous operation / 20 minute auto shut-off selection Indoor / outdoor operation selection
• On board Vox system selection. This adjusts unit output volume in line with ambient noise levels.
• Unit is powered by a 12v power supply

Our Unique Mosquito Mk4 Package contains:

• Mosquito Mk4
• Power supply unit
• mounting bracket
• fixtures and fittings
• Installation Instructions

We would recommend using the additional Protection Cage if the unit is sited lower down or in areas that have a problem with vandals. The cage will only fit the Mosquito when installed flush to a wall. Select the cage option if required from the drop down box. We also recommend the additional 7 day electronic timer to allow programming the unit for operation during specific times.

Only £419!Cheapest in the UK. Now including our fantastic Installation Kit Free, usually £20.00!!!

Including Free Delivery & 2 Year Warranty!

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Product Reviews

Showing reviews 1-3 of 5 | Next

  1. Works

    Posted by Harry Jones on 4th Sep 2012

    It does the trick, i thought expensive at first but after installing one to the rear of my shop its worth every penny!

  2. I have got my life back

    Posted by Mr Ainsworth on 31st Aug 2011

    for a long time i have had my life disrupted by kids kicking a ball on the side of my house most weekends i have been woken up buy thud thud thud on the side of my house as the football rickashed of the end wall ( it is even worse during wimbldon with the tennis ball) i was down the local when my mate told me about the mosquito i did my resurch into it and shoped around on line cctv direct got it out to me the next day and a local sparkey put it up for me a few days later the lads dad came to see me to ask what i had done because he could not hear it the lads were complaneing about the noise so i explaned what had happened he said i was a old grump but i have had no problems from the balls again thank you

  3. What a Brilliant Device!!!

    Posted by Mr P Hardward on 22nd Dec 2010

    I live at the entrance to Hitchin Railway Station, which suffers from Drunk and Disorderly youths that gather outside normaly Friday (zoonight)and Saturday nights, useually when they miss the last train home There is also a footpath (Burtons Path) that drug dealers meet just by our house, but out of the way from the Council CCTV. Since I have enstalled the MOSQUITO my life has changed overnight. As soon as I hear or see a gathering I turn on the MOSQUITO and they are gone within 2 minutes - Brilliant!!!

Showing reviews 1-3 of 5 | Next