Features Sensitivity Adjustment: The refrigerant leak detector has the function of stepless adjustment of sensitivity, which can be adjusted at any time during detection, all instruments can automatically adjust to the optimum detecting state; Built‑in voltage, high accuracy and using ultra‑low power IC design, make the work is more stable. Power on Reset: after the refrigerant leak detector is powered on, the circuit can be automatically adjusted within 6S to ignore the current of the probe. When the refrigerant concentration level enters the detection state, the instrument can also be moved to clean air and started to adjust. When the maximum sensitivity is reached, the leakage above the zero concentration level can be detected. Automatic Following Circuit: when the the refrigerant leak detector Is in the detection state, the automatic circuit will follow the halogen in the environment. The change of halogen concentration in the environment can be ignored to prevent false alarm. Long Life Expectancy: The halogen leak detector uses the high quality sensors, the work high sensitivity, long life expectancy.The refrigerant leak detector product has the function of the sensitivity stepless speed regulation, can adjust in testing. Leakage Warning: the indicator light at the front of the panel is used to warn of leakage and battery voltage indication. When the leaked gas is found, the "didi" sound will become faster. The more the leakage, the faster the "didi" sound. At the same time, the indicator flashes. Product Description:  The refrigerant leak detector can detect all refrigerants containing halogen. It is small, safe to use, and easy to operate and carry. Features: Applicable Scope: Not only can be used in automobile air-conditioning system, also can be used in:(1) can detect air conditioning, the refrigeration system and refrigerant recovery device. Instrument for all the halogen gases (including chlorine and fluorine) has responce, but still not limited these:E.G.R 12, R11 CFCs, R503 R500, etc. E.G.R HCFCs R123, 22, R124, r114 etc...E.G.R 134a Nathan Road, R404a HCFCs and R125 etc...Still can detect other compounds, such as AZ - 50, HP62, MP39, etc...(2) the detection of ethylene oxide on the medical equipment gas leak hole (detection halogen thrusters);(3) the SF high voltage circuit breaker detecting 6;(4) detection most fluorine, chloride, bromine (halogen gases);(5) the detection fire-extinguishing systems, dragon gas. Package includes: 1pcs Gas CFC HFC Refrigerant leak DetectorNote: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List