Feature: 1. CHARGING FUNCTION Equipped with a 3.7V 1000mAh lithium battery, it supports USB charging, can easily extend the use time, and has higher practicability and efficiency. 2. WIDE RANGE OF APPLICATION It is suitable for detecting all halogen gases, including the reaction of chlorine and fluorine, detecting ethylene oxide and ethanol gas on medical equipment, detecting halon gas in fire extinguishing systems, detecting air conditioners, refrigeration systems and refrigerant recovery devices. 3. COMPREHENSIVE DETECTION It can detect the location of halogen gas, quickly warm up, and respond quickly, and supports two level alarm display. The more indicator lights, the greater the leakage rate and the greater the concentration. 4. HIGH PERFORMANCE DESIGN Using imported sensors, it has good sensitivity and excellent repeatability, sensitive induction, rapid response and timely alarm. 5. A VARIETY OF PROMPTS You put the instrument in the space that needs to be detected. If the detected gas is higher than the specified concentration value, there will be sound, flashing, and vibration alarms to remind you in time to avoid unnecessary losses. Specification: Item Type: Refrigerant Leak Detector Model: AS5750 Material: ABS Battery: 3.7V 1000mAh Lithium Battery (Battery Included) Purpose: As a halogen gas detector with charging function, it is suitable for detecting all halogen gases, including the reaction of chlorine and fluorine, detecting ethylene oxide and ethanol gas on medical equipment, and detecting halon gas in fire extinguishing systems. It can detect air conditioners, refrigeration systems and refrigerant recovery devices. Support Language: English Test Items: All Refrigerant Gases Sensitivity: Less Than 0.5oz/Yr Response Time and Instant Power: All Halogen Based Refrigerants Continuous Working Time: 5 Hours (With Operation) Low Battery: 5.5±0.3V Working Temperature: 0~52°C. Package List: 1 x Refrigerant Leak Detector1 x USB Cable1 x Manual1 x Instrument Case Note: When the gas is higher than the specified concentration value, there will be sound, flashing, and vibration alarm prompts to remind in time to avoid unnecessary losses.This product does not include an adapter.