ATI Airtest Technologies Inc. is a Green-Tech company. The primary business activity is the manufacture and sale of air testing equipment and related services in Canada and the United States. It specializes in Demand Control Ventilation systems that improve commercial building operating efficiency and generate proven energy savings. It has developed new wireless sensors with real-time communication and control technologies. Uses its gas sensors to accurately and efficiently maintain indoor air quality and reduce carbon emissions. Its product portfolio of over 300 sensor products can be configured to work with any monitoring or building control system, such as IAQEye, TR-2000-DIGI, enGuard, ID Beacon Model 38, CN7232, TR9291, TR-2000 and others. It offers products from E+E Elektronik, Smartcool, Centrica, as well as its own portfolio of products. TR-2000-DIGI is its multi-protocol network transmitter for CO, NO2 and Temperature Measurement.