Key Features Usingï¾ importedï¾ high-precisionï¾ electrochemicalï¾ principlesï¾ sensor USBï¾ interfaceï¾ highï¾ speedï¾ dataï¾ transmission,ï¾ canï¾ beï¾ downloadedï¾ printï¾ dataï¾ (optional) LCDï¾ dotï¾ matrixï¾ displayï¾ technology,ï¾ canï¾ displayï¾ theï¾ typeï¾ ofï¾ gas,ï¾ theï¾ gasï¾ unit,ï¾ gasï¾ concentrationï¾ values,measuredï¾ maximum,ï¾ localï¾ time,ï¾ ambientï¾ temperature,ï¾ etc. Supportï¾ Chineseï¾ andï¾ Englishï¾ operationï¾ interface,ï¾ easyï¾ toï¾ switch Gasï¾ concentrationï¾ unitï¾ PPM,ï¾ mg/m3ï¾ canï¾ quicklyï¾ switchï¾ display Built-inï¾ microï¾ samplingï¾ pump,ï¾ theï¾ pumpï¾ suctionï¾ sizeï¾ tenï¾ stallsï¾ adjustable Explosion-proofï¾ certification,ï¾ proofï¾ grade:ï¾ Exiaï¾ IIï¾ CT4 Technical Specifications Gasï¾ Detected Oxygenï¾ (O2) Detectionï¾ principle Electrochemicalï¾ principles Samplingï¾ Method Pump-ï¾ suction,ï¾ flowï¾ upï¾ 1L/min,ï¾ pumpï¾ suctionï¾ sizeï¾ tenï¾ stallsï¾ adjustable Measureï¾ Range 0-5%VOL,ï¾ 0-10%VOL,ï¾ 0-25%VOL,ï¾ 0-30%VOL Resolution