Specification: Measurement range Ch4:0-100% co2:0-50% o2:0-25% h2s:0-9999ppm Precision:co2/ch4:ía2%, o2:ía3%, h2s:ía4% Resolution: ch4/co2/o2:0.01% , h2s: 1 ppm Respond time:less than 20s Warm up: 10min Output: rs232 Power: rechargeable lithium cell inside Dimension:225x172x61mm Weight: 2kg
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