D-TEK Stratus combines the superior leak detection of INFICON D-TEK leak detectors with the cloud hunting capability of a portable monitor all in one hand-held unit. Cloud hunting mode helps you find the area highest in concentration and then switch to pinpoint mode to quickly find the leak. Quickly locate the area containing the leak using the large, easy-to-read LCD display, and then pinpoint the leak all with one instrument! D-TEK Stratus is the next big thing in refrigerant leak detection. Optional swappable CO2 sensor for detecting CO2 refrigerant leaks.