Gas Detector for 4 Gases :
- H2S - hydrogen sulfide: 0-100 ppm ( 1ppm)
- O2 - oxygen: 0-30.0% ( 0.1% )
- CO - carbon monoxide: 0-500 ppm ( 1ppm)
- LEL combustibles: 0-100% LEL ( 1% )
Four....
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