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Smoke Pencil Pro Draught Detector Field Kit Hard Case

FREE delivery on all UK orders over £25!

Smoke Pencil Pro Draught Detector Field Kit Hard Case


This comprehensive kit comes with accessories that enable a very fine stream of smoke to be created so that the tiniest of air leaks can be pinpointed. Other benefits of the smoke draught detector pro kit are:
Safe and easy to use
Quick application
Allows accurate targeting
Lightweight and compact
Highly controllable

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19 in stock


If you’re on a mission to reduce air leaks at home or in the workplace, knowing how to find a draught is essential. It can lead to a more comfortable, healthy and less costly way of life.

Finding obvious air gaps might be an easy task, but to properly air seal a building, the less obvious air leaks also need to be identified.

Whether you’re testing air pressure for a Passivhaus development or draught proofing your current home, a Smoke Pencil Pro allows all air leaks to be easily found – taking you a step closer to creating a draught-free environment.

How to find a draught

Draughts occur when unwanted gaps or openings in a building allow cold or warm air to pass through. Air leakage through these gaps can be caused by either the buoyancy effect [when a warm air causes a building to rise and expand, therefore creating gaps] or by the pressure differential created by wind blowing on a building.

One way of finding draughts is to hire a qualified technician to conduct an energy audit,  but this doesn’t come cheaply. The Smoke Pencil, however, is the ultimate DIY Draught Detector that will help you pinpoint where draughts come from at a fraction of the cost.

When using the Smoke Pencil, make sure to test the following areas:

  • Chimneys and fireplaces
  • Windows
  • Doors – including letterboxes
  • Between floorboards
  • Around pipework
  • Plug sockets and light fixtures
  • Attics
  • Cracks in walls

How do I use my DIY Draught Detector?

After inserting the AA batteries and pressing the trigger of a Smoke Pencil, a plume of smoke-like substance is released. This is generated from a harmless glycerine-like fluid which gives off a slightly sweet smell. If there is any air escaping through your doors, windows or walls, the smoke will be directed away from it’s expected path – showing you that this is an area that requires draught management. The Smoke Pencil allows you to not only feel the draught, but see it too.


What comes in my Smoke Pencil Draught Detector Kit?

This comprehensive kit includes the Smoke Pencil Pro, a black nozzle attachment for a more concentrated stream of smoke, and a blue nozzle attachment which gives a very fine stream of smoke, six Duracell batteries (and an extra battery for the blue attachment), and a small screwdriver for opening the battery compartment.  Full instructions are also enclosed.


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