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Features：

• Measurement ranges:
  GPR-1500 GB: 0-10, 0-100, 0-1000 ppm,0-1%, 0-25%
  GPR-2500 GB: 0-1, 0-5, 0-10, 0-25%
• Sensitivity:
  GPR-1500 GB: 0.05 ppm
  GPR-2500 GB: 0.005%
• Accuracy of better than 2% of range
• <1% of scale linearity
• 0.34-2 barg (5-30 psig) with atmospheric vent inlet pressure
• 0.5-1 Nl/min (1-2 SCFH) flow rate
• 24 months sensor life span (in normal use)
• 4-20 mA output
• 18-24V loop powered
• XLT sensor options for CO2 backgrounds