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About product and suppliers:
        Alibaba.com offers 117 gas detector pen products. About 88% of these are gas analyzers, 1% are testing equipment. 

A wide variety of gas detector pen options are available to you, such as personal, fire. 

There are 115 gas detector pen suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of gas detector pen respectively. 

Gas detector pen products are most popular in North America, Eastern Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 27 with ISO9001, 7 with Other certification.