... location. AD-G106 is ideal for measuring gas leak concentration and locating leak point in gas network, due to its advantages of ... flow. 4)Automatic range transfer according to the degree of leak gas concentration, easier for use, set range by manual is ... , belt, water-proof and dust-proof filter, cup probe, carrying case, User’s Manual in Chinese/EnglishOptional Accessories:Trolley probe, borehole ...