Burn time is approximately 3 hours for continuous smoke or can also be used for 60 second bursts.
The new Smoke Pens are designed to be used for testing ventilations systems, Vesda systems and smoke detectors. They come complete with 6 spare refills and have a hot cap which can be fitted after use to reduce the risk of burns.
Refills can be purchased separately as a pack of 6 (SMOKE-PEN-RF).