Features:Detect all refrigerants containing halogen.WJL-6000 has power-on reset and auto-follow functions, which can ignore the concentration level of halogen gas in the environment.Power-on reset/auto follow circuit:Battery voltage indication: The indicator light on the front of the panel is used to warn of leakage and battery voltage indication. Green-the battery voltage is normal and suitable for work, orange-the battery voltage is close to the working limit and needs to be replaced as soon as possible.Battery voltage two-color indication, using high-quality sensors, high working sensitivity, longer lifeBuilt-in high-precision voltage regulator IC, and adopts ultra-low power consumption design, which makes the work more stable and the battery more durable.Adjust the sensitivity at any time, and the instrument can automatically adjust to the best detection state.Widely applied on pipe leakage, automobile air conditioner, cold storage, refrigerator repair and so on.Specifications:Power-on reset: After the instrument is turned on, the circuit can be automatically adjusted within 6 seconds to ignore the existing probe.The concentration level of the refrigerant is in the detection state. If the user turns on the device next to the source of the leak,look for the source of a higher concentration of leakage. The instrument can also be moved to clean air and turned on to adjust.Adjust to the maximum sensitivity, at this time leaks above the zero concentration level can be detected.Automatically follow the circuit: when the instrument is in the detection state, the automatic circuit will follow the halogen in the environment.The change of gas concentration prevents false alarms.Sensitivity adjustment: This product has the function of steplsensitivity adjustment, which can be adjusted at any time during detection.Leakage warning: When the leaking gas is found, the "didi" sound will become more rapid. The more leakage, the more rapid the "didi" sound. At the same time, the indicator light flashes quickly.Simple Operation Instruction:1.Install 4 x AAA battery(not included)2.Turn the knob clockwise to turn on the leak detector, after 6 seconds, it turns into stand-by mode and begins to beep regularly. Then you can start detecting the leak.3.The detector will beep regularly at a slow frequency when turn it on. If leak detected, it will beep in a higher frequency. (2 beeps per second when the detector is open, 10 beeps per second when detect the leak4.The sensitivity increases from 1 to 7 in sequence5.This Freon leak detector is designed with corona sensor so the probe should be very close to the gas leak area.Parameters:Reset the time: 2-10 secondsWorking temperature: 0 C ~ 52 CMaximum sensitivity: 6gr/yr(halogen refrigerants).Electricity source: DC6V , 4 x AAA batteries(not included)Fixed probe length: 20cm (7.87 inches)Operating mode: continuous, unlimitedPreheating time: about 6 seconds.Response time: instantaneousBattery life: about 50 hours under normal use.Scope of application:Not only can be used in automobile air conditioning systems, but also in: Capable of testing air conditioners, refrigeration systems and refrigerant recovery devices. The instrument reacts to all halogen gases (including chlorine and fluorine), but it is not limited to these:CFCs e.g. R12, R11, R500, R503 etc.HCFCs e.g. R22, R123, R124, R502 etc.HCFCs e.g. R134a, R404a, R125 etc.It can also detect other mixtures, such as AZ-50, HP62, MP39, etc. Detection of ethylene oxide gas leaks on medical equipment (detection of halogen thrusters) Detect SF-6 in high-voltage circuit breakers Detect most of fluorine, chlorine and bromine (halogen gas) Detect the halon gas in the fire extinguishing system.Package Included:1 x Instruction manual1 x Halogen leak detector with probe1 x Carrying pouch1.