The MiniColt 4S has been designed for air flow testing, visualization tests and particle recovery work. It is a completely portable unit and has the ability to produce anything from a small wisp of artificial smoke to a large plume, on and off power.

The 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 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.