Inficon 724-202-GI D-TEK Refrigerant Leak Detector. D-TEK Stratus combines the excellent leak detection of D-TEK Select and the cloud hunting capability of a large portable monitor all in one hand-held unit. Quickly locate the area containing the leak using the large, easy-to-read LCD display, and then pinpoint the leak with one instrument! D-TEK Stratus is the next big thing in refrigerant leak detection. Product Features Detects traditional refrigerants, blends, CO2, and even flammables.