Sample Parameters: Vapor only, oil-free, 300 psig (2 MPa max.) Detected Compounds: R-12, R-134a, R-22, hydrocarbons, air Sensor Technology: Non-Dispersive Infrared (NDIR) Refrigerant Sample Size: 0.3 ounces (8.5 grams) per sample Power: Universal 110/220V AC, 50/60 Hz, 0.2 amps max. Operational Temperature: 39° F – 122° F (4° C – 50° C)