The SMART-Sensor™ LCD has been significantly improved, the company said. The LCD Series delivers a communicating sensor solution that allows you to connect with up to 10 configurable parameters related to the space. An integrated CO2 sensor option has now been added to the design of the product. The CO2 sensor has a convenient auto-calibration feature that establishes a baseline CO2 level for any space. A manual calibration option is available. Features include a nondispersive infrared optical sensor; 0-2,000 ppm range, accuracy ±50 ppm ±3 percent of reading (resolves to 1 ppm); and nonlinearity < 1 percent of full scale. The unit has dedicated LCD icons for the display of auto, manual, cool, heat, fan, and fan speed.