The Concept Air Trace is perfect for situations where a small amount of smoke is required for air tracing applications or in remote locations where no power is available. It is capable of producing shorts bursts or a steady stream of smoke, if required, for up to 10 minutes on a full battery or up to 1 hour, with the optional mains adaptor and dummy battery. The unit is compact and very simple to use and operates on a 12vDC sealed battery.