PERFORMANCE 
Sensitivity           nA/ppm at 2ppm NO2                                       -175 to -450
Response time     t90 (s) from zero to 2ppm NO2                                    < 60
Zero current        nA in zero air at 20℃                                         -50 to +70
Noise*                ±2 standard deviations (ppb equivalent)                          15
Range                ppm NO 2 limit of performance warranty                          20
Linearity             ppm error at full scale, linear at zero and 20ppm NO2 < ±0.5
Overgas limit      maximum ppm for stable response to gas pulse                50
* Tested with Alphasense AFE low noise circuit

LIFETIME
Zero drift             ppb equivalent change/year in lab air                          0 to 20
Sensitivity drift     % change/year in lab air, monthly test                 < -20 to -40
Operating life       months until 50% original signal  (24 month warranted)   > 24

ENVIRONMENTAL
Sensitivity @ -20℃ (% output @ -20℃/output @ 20℃) @ 2ppm NO2   40 to 80
Sensitivity @ 40℃  (% output @ 50℃/output @ 20℃) @ 2ppm NO2   95 to 115
Zero @ -20℃         nA         0 to +25
Zero @ 40℃          nA         20 to 60

CROSS SENSITIVITY
O3            Filter capacity (ppm hrs) @ 2ppm O3                   > 500
H2S           sensitivity % measured gas @ 5ppm H2S             < -80
NO            sensitivity % measured gas @ 5ppm NO                 < 5
Cl2            sensitivity % measured gas @ 5ppm Cl2               < 75
SO2           sensitivity % measured gas @ 5ppm SO2              < -5
CO            sensitivity % measured gas @ 5ppm CO                < -5
C2H4         sensitivity % measured gas @ 100ppm C2H4         < 1
NH3           sensitivity % measured gas @ 20ppm NH3         < 0.2
H2             sensitivity % measured gas @ 100ppm H2          < 0.1
CO2           sensitivity % measured gas @ 5% Vol CO2            0.1
Halothane  sensitivity % measured gas @ 100ppm Halothane   nd

KEY SPECIFICATIONS
Temperature range ℃                                        -30 to 40
Pressure range       kPa                                       80 to 120
Humidity range      % rh continuous                     15 to 85
Storage period       months @ 3 to 20℃ (stored in sealed pot)  6
Load resistor          Ω (AFE circuit recommended)   33 to 100
Weight                  g                                           < 6