Features: This product is a halogen leak detector and uses a sensitive diode (semiconductor) sensor for a variety of halogen gaseous chemicals The thermistor leak detector is currently the most sensitive portable device for accurate detection of coolant leakage in refrigeration systems It includes automobile air conditioning, cold storage, automobile refrigeration system and family, office and industrial cooling / refrigeration systems, which are used as refrigerants for refrigerants This equipment is a necessary tool for technicians in the field of refrigeration and air conditioning services It can be used for R134a/R12/R22/R12/R502/R404a/R407 and other tests AC battery adapter and standby battery Hard suitcase offers better protection and preservation Note: The leak detector is designed to find halogen refrigerants (CFCs, HCFCs, HFCs >) with very low leakage of M At this time, the enclosed room must be ventilated before entering the very square. The concentration of the halogen agent may explode. In this case, when there is a very serious leakage of agent in the closed room, the room may be anoxic. Refrigerant, such as ammonia or hydrogen, two gasified carbon, is used in the refrigeration system, this equipment can not be detected When the function display lamp goes out, the function is in manual mode, and press the key function once or manually Specifications: Alarm mode: buzzer, three-color LED Battery: 4*AA (not included) Battery life: about 7 hours AC adapter: AC 110-240V Probe length: 40CM (15.5") Auto power off: 10 minutes Warm-up time: about 45 seconds Operating temperature and humidity: 0-40°C <80% RH Detectable gases: R11, R12, R13, R22, R502, R500, R134a etc. Size: 173*66*56mm Net weight: 600g