1) Sensitivity: 450 to 750 nA/ppm in 10ppm SO2
2) Response time: < 25S from zero to 10ppm SO2
3) Zero current: < ± 0.5 ppm equivalent in zero air
4) Resolution: < 0.1 RMS noise (ppm equivalent)
5) Range: 50 ppm limit of performance warranty
6) Linearity: < ± 0.3 ppm error at full scale, linear at zero and 10ppm
7) Overgas range: 75 maximum ppm for stable response to gas pulse
8) Operating life: > 24 months until 80% original signal (24 month warranted)