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| 72-0290-07-F SEE APPLICATIONS, GX-2012, 2-sens, % vol CH4/H2S, w/Li-ion batt pack/chgr/AC & DC adapters | 
| 72-0290-07-F SEE APPLICATIONS, GX-2012, 2-sens, % vol CH4/H2S, w/Li-ion batt pack/chgr/AC & DC adapters |