Key Features Usingᅠimportedᅠhigh-precisionᅠelectrochemicalᅠprinciplesᅠsensor USBᅠinterfaceᅠhighᅠspeedᅠdataᅠtransmission,ᅠcanᅠbeᅠdownloadedᅠprintᅠdataᅠ(optional) LCDᅠdotᅠmatrixᅠdisplayᅠtechnology,ᅠcanᅠdisplayᅠtheᅠtypeᅠofᅠgas,ᅠtheᅠgasᅠunit,ᅠgasᅠconcentrationᅠvalues,measuredᅠmaximum,ᅠlocalᅠtime,ᅠambientᅠtemperature,ᅠetc. SupportᅠChineseᅠandᅠEnglishᅠoperationᅠinterface,ᅠeasyᅠtoᅠswitch GasᅠconcentrationᅠunitᅠPPM,ᅠmg/m3ᅠcanᅠquicklyᅠswitchᅠdisplay Built-inᅠmicroᅠsamplingᅠpump,ᅠtheᅠpumpᅠsuctionᅠsizeᅠtenᅠstallsᅠadjustable Explosion-proofᅠcertification,ᅠproofᅠgrade:ᅠExiaᅠIIᅠCT4 Technical Specifications GasᅠDetected Oxygenᅠ(O2) Detectionᅠprinciple Electrochemicalᅠprinciples SamplingᅠMethod Pump-ᅠsuction,ᅠflowᅠupᅠ1L/min,ᅠpumpᅠsuctionᅠsizeᅠtenᅠstallsᅠadjustable MeasureᅠRange 0-5%VOL,ᅠ0-10%VOL,ᅠ0-25%VOL,ᅠ0-30%VOL Resolution