... freeze, refrigeration, air-conditioner intelligent R12 R22 R134a electronic Refrigerant Auto Gas Leak Detector for freeze, refrigeration, ... conditioner The CT-CPU03 /CT-CPU06 halogen leak detector adopt advanced digital circuit and micro processor control ... length14”(33.5cm) intelligent R12 R22 R134a halogen electronic Refrigerant Auto Gas Leak Detector for freeze, refrigeration, ...