Vesda VSP-810 Smoke PenThe Smoke Pen simplifies Aspirating Smoke Detection (ASD) system testing by providing a user friendly design that generates a continuous smoke trail. Using refillable wicks, the device works like a mechanical pencil; where a wick can be inserted into the pen, leaving a 10mm trace that can subsequently be ignited by either a lighter or match. The patented design of the wick ensures a continuous and consistent smoke trail, helping simplify ASD system