LD-200 Heating Diode Handheld Leak Detector Air Conditioning Refrigeration System Gas Detector Handheld CFCs HCFCs Leak Tester. The LD-200 is a hand-held leak detector that uses the heated diode detection principle. Compared with the traditional leak detector, its sensor has longer life, higher detection accuracy, easy to operate and can detect a wider range of refrigerant. LD-200 is equipped with large LCD screen, so that the test results are more intuitive. The exclusive design of appearance is in accordance with human body mechanics to make it the best experience for users. Charging current:5VDC 1A. Sensor principle: heated diode. Sensor life: 10 years. Sensitivity: max 4g/ yr. Alarm mode: sound and light alarm, LCD display. Battery: built-in rechargeable lithium battery 3.7V 3000mAhWorking time:continuous 6H. Operating environment:-10 C -52 C relative humidity (50%85% RH)Storage temperature:-20 °Cto 60 °C(-4 °Fto 140 °F). Weight: 415g(14.6oz). Size: 201mm 86mm 38mm (7.9″ 3.3″ 1.5). Refrigerating systems Air conditioning units It responds to ALL halogenated (containing chlorine or fluorine) refrigerants, including: CFCs – e. R11, R12, R500, R503 etc HCFCs – e. R22, R123, R124, R502 HFCs – e. R125, R134a, R404a Blends including AZ-50, HP62, MP39 etc Detect ethylene oxide gas leaks in hospital sterilizing equipment Detect SF-6 in high voltage circuit breakers Detect most gasses that contain chlorine, fluorine and bromine (halogen gasses) Detects cleaning agents used when dry cleaning such as perchloroethy Detects halogen gasses in fire extinguishing systems. Maximum sensitivity is less than 4g / yr. L- M- H, three levels of sensitivity adjustment. Self-test function starts once power on. Leakage peak recording function. Sensor fault alarm. LCD display, display the leakage more intuitively. Shut off the hardware circuit function so that the battery can be used for. Open or close the buzzer in on button and can apply to all occasions. Built-inhigh-capacity rechargeablelithium battery ismoreenvironmentally. Friendly and has longer service life. Flexible probe, can used to detect in a narrow space. 1 x Halogen leak detector with probe 1 x Instruction sheet 1 x Black carrying box.