Detects Industry Standard Refrigerants Including but not limited to: HFC:   R-134a, R-410A, R-404A, R-407C & R-507 (R-134a, R410A sensitivity  ≥ 0.05 oz/yr) HCFC:   R-22 (R-22 sensitivity  ≥ 0.025 oz/yr) CFC:   R-12 Hydrocarbon Blends: HC-12a, OZ-12a Solid Electrolyte Semiconductor Sensor Digital Numeric Leak Size Indicator 3 Sensitivity Levels Visual LED Leak Alarm Whisper Action Pump Automatic Calibration & Ambient Level Reset Splash Resistant 3 Year Limited Warranty (Includes Sensor) Compliance SAE J2791 Certified CE Certified Euro Standard EN 14624