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    Product Name KORNO GT-903-Y4(CO,H2S,O2,EX) Gas Detector KORNO GT903-F4（CO、H2S、O2、EX） Portable four-in-one Detector
    Product Price $469.00 In coming
    Details Details
    Model comparison
    Usage Type Portable Portable
    Gas Quantity Multi-gas Multi-gas
    Sensor Principle Electrochemical Catalytic Bead NDIR Electrochemical Catalytic Bead
    Sampling Method Pumped Pumped
    Detection gas Ex O₂ CO H₂S Ex O₂ CO H₂S
    T90 Response Time ≤20s ≤20s
    Explosion-proof Ex ia (IS) Ex ia (IS)
    IP Rating IP65 IP65
    Data Output
    Parameter comparison
    Detect gas CO、H2S、O2、EX Simultaneous detection: H2S, CO, O2, EX gas, H2S (High Performance Japanese Basic Sensor), CO (High Accuracy Japanese Basic Sensor), EX (Imported Japanese Basic Catalytic combustion Sensor), O2 (Swiss MEMBRAPOR Imported Sensor)
    Range 0~1000ppm，0~100ppm、0~30%vol、0~100%LEL EX Range 0-100% LEL, H2S Range 0-100ppm, CO Range 0-1000ppm, O2 Range 0-30% VOL
    resolution 0.1ppm，0.01ppm，0.01%vol EX：0.01%LEL、H2S：0.01ppm、CO：0.1ppm、O2：0.01%VOL
    Humidity Optional accessories, temperature detection Range: -40~ 120℃, Humidity detection Range: 0~ 100% RH
    Sampling method pump suction Pump suction Type, built-in powerful air pump, flow rate: 100-1000mL/min adjustable, can work in a micro negative pressure environment
    detection accuracy ≤±3% ≤±3%
    Linearity ≤±1% ≤±1%
    Response Time T90≤20s T90≤20s
    Zero drift ≤ +/- 1% (F. S/year) ≤ +/- 1% (F. S/year)
    recovery time ≤20s ≤ 20 seconds
    Repeatability ≤±1% ≤±1%
    detection mode Real-time detection, timing detection can be set Real-time detection, timing detection can be set
    Data storage Real-time storage and timed storage can be set; a single channel can store 30,800 sets of data
    Explosion-proof sign Ex ia ⅡC T4 Ga Ex ia IIC T4 Ga
    Shell material ABS+PC
    Protection Rating IP65 IP65
    Operating temperature -30~60℃
    Environmental humidity 0~ 95% RH non-condensing
    Operating Pressure -30Kpa~200Kpa
    power supply 4000mA rechargeable polymer battery
    Dimension 180*85*55mm 180*85*55mm
    execution standard GB3836.1-2010、GB3836.4-2010 GB3836.1-2010 "Explosive environments - Part 1: Equipment - General requirements", GB3836.4-2010 "Explosive environments - Part 4: Equipment protected by intrinsically safe" i "