Worldwide Shipping
Large Orders? Request a Quote
Delivery To UK Mainland £6.95 + VAT


dziękuję za doskonałą obsługę

systemu przeciwpozarowego i za wspaniale wsparcie.


Dear Sirs,

Just a line to thank you for the prompt delivery of my JSB terminators which arrived at 09:00 today.


Stuart Willcock

Dear Hannah,

The test equipment arrived one day early, received on Tuesday; wunderbar!

Jürgen Schulz

Hi Emma,

Thank you for your awesome work!

William J

Good Morning Emma,

I must say you are the best.  Normally I do not receive such fast replies from overseas suppliers, and that too complete with courier charges.

Have a nice day.



I received and checked through my order today and everything is as it should be.

Thanks again to you and to Acorn fire and security for a great and efficient service.


Hi Hannah,

Thank you very much for the quick turnaround, as this was a big ask in a short space of time. Please convey my appreciation to all involved.

Steve Sneddon


Many thanks to you and Aleks it is a great help.




Installed these today, worked a treat.




Perfect service, thank you



Again many thanks for your help and assistance.

System now fully back on line.

Andrew Kelly

Thanks Lauren,

it’s so nice to deal with a company who are so accommodating, it’s been a refreshing change for us!


Ms Deborah

We are extremely grateful and appreciative of yours and your team’s customer oriented attitude and behavior.

We look forward to further business dealings with your organization.


Hi Lauren,

The below parts have just arrived! That was very quick and efficient!

Thankyou for organising that


Hi Emma,

Thank you very much for all your help - excellent service!

Fiona McGregor

Thankyou so much for your assistance, I don't know how you managed to source this equipment, but I'm very glad you did. All fitted and working now!!

Med vennlig hilsen

K Larsen

You’re the best, thanks!

Have a nice weekend.

Best regards / Met vriendelijke groet


Thank you for the support and service you provide. I look forward to working with you guys again in the new year!



Thank you all for your support on this project. We’ve worked well together in my opinion and would hope that we can do so again in the future.


Hi Dave

Just a quick note to say thanks for the advice on the replacement of the Mother board. We attended a week ago and all went smoothly, no problems since (touch wood!).


Hi Dave,

The service and support from Emma and the other staff has been superb and as a new customer purchasing wise I will now be placing all orders with Acorn.

Andrew Sullivan

Good morning Emma,

Order has been well received yesterday, I can say that we are very happy with your service.

Best regards,


Dear Lauren,
Thank you so much and very glad to be your customer.
Juladit C.

Juladit C


Please pass on my thanks to Lauren for sorting out my order yesterday, top class service yet again from your team.


Dear Hannah,

After several weeks of trying to find these parts; you located part numbers, cost, availability and air freight within one day!

Nancy Johnson

Many thanks as always for the quality and speed of the service!


Thanks a lot,  we really appreciate professional work and good service.

We also wish you a Merry Christmas and Happy new year!


Hello again,

Equipment arrived on MT as arranged.......amazing.

Marios Georgiades

Cheers Dave you're a star

Kind Regards


Hi Dave,

Many thanks for your swift reply & valued advise. (great service)




Thanks for all your help and excellent customer service! :-)

Kind Regards,

Ainsley Cooper

Hi Dave,

One happy customer, thanks for the assistance with this.


Dear Lauren, very good and prompt services, thanks!

Wishing you have a Merry Christmas and a Happy New Year 2015!



Thanks for all your help with this last night we appreciate the service you provided to us.

Kind Regards


Hi Lauren,

Thank you very much, excellent service as usual.



Hi Deborah

Thank you very much for going extra mile for me. Great!

Best Regards


Thanks to Lauren for helping resolve a problem.

She was helpful, efficient, and above all pleasant.

A real asset.



Ashley you're like a salesman dream!!

Thanks for your help Ash.

Kindest regards,


Dear Sales,

Equipment arrived on the vessel at berth as arranged, thank you so much for your assistance.

Jaqueline Bernard

Acorn Fire & Security have vastly improved our business, through excellent customer service from point of order, through to rapid delivery to our Engineers in the field.

Steven Troy

Thanks Charlotte.

I wish all suppliers where as efficient and quick as you guys.

Best Regards,

Peter Jackson

Hello Aleks and Dave

Many thanks firstly for the quick response.

Once again many thanks for such a great turnaround.

Dave Lewis

Hi Emma

Many thanks for your quick response. Just discovered your website today but it looks excellent!

Nicola Allan

We have just purchased a SOLO kit from yourselves and I have say we have been very impressed with the service and support provided – thank you 


To all at Acorn,

On behalf of myself, and our Service staff, thankyou for your continued support, and thankyou for going the extra mile last week; our Client is now extremely satisfied!


Vesda VLF-500 LaserFOCUS Detector - 500m2 Coverage

Vesda VLF-500 LaserFOCUS Detector - 500m2 Coverage

Vesda Xtralis

Product Code: VLF-500

Please Contact Us for Price & Availability.

Contact Us


Vesda VLF-500 LaserFOCUS Detector - 500m2 Coverage

The VESDA LaserFOCUS detector delivers the most advanced air sampling smoke detection technology to small environments - cost effectively. The VLF-500 model protects areas up to 500 sq.m. In addition to the features found in all VESDA Laser products, the VESDA LaserFOCUS provides a new range of features & built-in intelligence that allow quick installation, commissioning and servicing.

The detector works by continually drawing air into sample holes in a pipe network. The air is filtered and passed into a detection chamber where light scattering technology detects the presence of very small amounts of smoke. Detector status information is communicated on the detector display and via relays or optional interface cards. The VESDA LaserFOCUS can be installed and commissioned out-of-the-box without the need for a special interface or software programming tools.

In operation, the unique Smoke Dial display provides the user with an instant understanding of a smoke event, even from a distance. Should a fault occur, the user simply opens the field service door and activates the Instant Fault Finder feature to determine the specific fault condition. This information can then be passed onto their fire service company, ensuring that service technicians arrive onsite fully prepared. The patent-pending Ultrasonic Flow Sensing used in the LaserFOCUS provides a direct reading of the sampling pipe flow rate. The system is immune to air temperature and pressure changes and is unaffected by contamination. VESDA is the first air sampling smoke detector to use ultrasonic flow sensing.


  • Laser-Based Absolute Smoke Detection
  • Pre-engineered pipe network designs
  • Programmable Alarm Thresholds
  • Dual Stage Air Filtration
  • Instant Recognition Display
  • Instant Fault FinderTM
  • AutoLearnTM Smoke
  • AutoLearnTM Flow
  • Field Service Access Door
  • Multiple Event Logging in separate logs
  • Event log - up to 18000 events
  • Offline/online configuration capability
  • Up to 500 sq.m. (5000 sq. ft.) coverage



Tags: Xtralis
  • Vesda
  • Tyco
  • System Sensor
  • Menvier
  • Kentec
  • Kantech
  • KAC
  • JSB
  • Hyfire
  • Hochiki
  • ACT
  • Advanced Electronics
  • Apollo
  • Autronica
  • Crowcon
  • C-Tec
  • Fike
  • Gent
  • Vimpex
  • Ziton