Cold air has a knack of sneaking in through the tiniest of gaps, which can be hard to locate. The Smoke Pencil is an ingenious gadget for pinpointing air leaks and tracking down hard-to-find gaps. When the trigger is pressed, a plume of smoke-like substance is released. This is actually generated from a harmless glycerine-like fluid, giving off a slightly sweet smell. When the trigger is released, the “smoke” stops, making it highly controllable. It’s useful for detecting draughts around the house, but we’ve also sold them to hospitals, mechanics, for detecting leaks in boat hulls, and even to a drama group who wanted an Aladdin’s lamp prop! It comes with an 80ml bottle of fluid (enough for several hours’ worth of draught investigating)
The Smoke Pencil can also be adapted using the Smoke Pencil Adaptor kit – attach the battery-powered fan unit and fine tip to enable the Smoke Pencil to be held at all angles and pointed into narrow crevices in order to detect the smallest of draughts or air leaks.