Measure Gases in Ambient and Humid Conditions. Gasmet CX4015 is designed for continuous monitoring applications in ambient conditions, such as workplace air monitoring and quality control applications. It can be used to measure up to 50 components simultaneously, and additional gases can be easily added without any hardware changes. The sample cell can be heated up to 50 °C, which allows measurements to be done in conditions where high humidity is expected and provides temperature stability in changing conditions.