Freon Gas Detector|Freon Leak Detector|High Sensitivity:Highly sensitive to R22, R410A, R134A, and R1234YF refrigerants, with a resolution of 1PPM. High Sensitivity Freon Leak Detector Halogen Leak Detector R22 R410A R134A R1234YF Refrigerant Gas HVAC Air Conditioner Tester.
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