The SMART-Sensor LCD now offers an integrated carbon-dioxide-sensor option. The option is designed to enhance the SMART-Sensor’s all-in-one packaging, eliminating the need to install multiple sensing devices in a  space. The carbon-dioxide sensor has a auto-calibration feature that establishes a baseline level for any space. Other features of the carbon-dioxide model include a non-dispersive infrared optical sensor and a sensing range of 0 to 2,000 parts per million. —Reliable Controls