0 - 10,000 ppm Flammable 0 -100% LEL Flammable 0 -100% Volume Gas Flammable 0 - 25% Oxygen (O2) 0 - 2000 ppm Carbon Monoxide (CO) 0 - 100 ppm Hydrogen Sulphide (H2S) 0 - 60 in. (0 to 150 mBar) Water Gauge
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ppm 0 - 10,000 LEL 0 - 100% (0-9.9%) Vol Gas 0 - 100% Oxygen 0 - 25% CO - 2000ppm H2S 0 - 100ppm Water Gauge
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1ppm 1% (0.1%) 1% 0.1% 1ppm 1ppm 0.1in. (1mBar)
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