CO2 Controller for MushroomsThe CO2 Controller for Mushrooms is designed to monitor and exhausts farm air when CO2 levels get too high and protect mushroom's from high concentrations. After the growth becomes evident, the optimum requirements change. Farmers typically need to maintain CO2 concentrations between 800 to 1500ppm, depending on the nature of the mushroom. Features Controls up to 2 zones (for small or large facilities) Accurate CO2 Control for Optimized Mushroom