Our state of the art mobile downwind monitoring units offer a reliable way of measuring low concentrations of SO2 and H2S gases. These vans have been designed with a four wheel drive system to withstand Alberta's rugged terrain conditions. To ensure quiet operation in highly populated areas, each van has also been equipped with an internal underhood generator. Daily comprehensive reports are generated during the course of a job to ensure that everything is in compliance with the EUB. On request, Firemaster can also give access to live online hourly Emax readings available through our secure site.