Vaisala has introduced two new Temperature and Carbon Dioxide Transmitter models in its GMW80 series: GMW84 and GMW84S with current outputs. Vaisala now offers a full range of CO2 wall sensors for HVAC applications. The GMW80 Series Carbon Dioxide, Temperature and Humidity Transmitters are ideal for standard demand-controlled ventilation and for spaces occupied 24/7. Vaisala’s carbon dioxide, humidity, and temperature transmitters use the second-generation CARBOCAP® technology and incorporate the Microglow light source technology, patented by Vaisala. Vaisala has designed the sensor in a way that minimises maintenance, further helping to reduce the cost of ownership. The low product life cycle costs are achieved thanks to the second-generation CARBOCAP® and the latest Microglow technologies. This leads to superior stability, lower power consumption and at least 15 years of reliable calibration-free operation. The GMW80 series transmitters are ready for use immediately and they will show correct CO2 readings right away without any adjustment period. Installation takes less than two minutes.