Nominal Range: 0 ~ 1,000 ppm Maximum Overload: 2,000 ppm Sensitivity: 0.025 ± 0.008 μA/ppm Response Time (T90): ≤ 45 s Zero Signal: < ±0.2 μA Resolution: 2 ppm Linearity: Linear up to 1,000 ppm Bias Voltage: 0 mV