Surna Inc. announced that it recently signed a sales contract valued at $3.2 million. The project in Arizona is for an approximately 53,000 square feet facility. Surna is under contract to provide custom air handlers, heat recovery chillers, and its StrataAir™ vertical racking air flow system, for the cultivation, processing, drying and office spaces (the mechanical engineering design was done by Surna through a previous contract in October). Surna will also provide its SentryIQ® environmental controls, and system start-up.