Performance Sensitivity na/ppm at 2ppm co 420 to 650 Response time t90 (s) from zero to 10ppm co < 25 Zero current na in zero air at 20°c +30 to -130 Noise* ±2 standard deviations (ppb equivalent) 4 Range ppm limit of performance warranty 1000 Linearity ppb co error at full scale, linear at zero, 500ppm co 20 to 35 Overgas limit maximum ppm for stable response to gas pulse 2000 * tested with alphasense isb low noise circuit Environmental Sensitivity @ -20°c (% output @ -20°c/output @ 20°c) @ 5ppm co 40 to 70 Sensitivity @ 50°c (% output @ 50°c/output @ 20°c) @ 5ppm co 110 to 125 Zero @ -20°c na -30 to +30 Zero @ 50°c na -50 to -200 Cross sensitivity Filter capacity ppm·hrs h2s 250, 000 H2s sensitivity % measured gas @ 5ppm h2s < 1 No2 sensitivity % measured gas @ 5ppm no2 < 1 Cl2 sensitivity % measured gas @ 5ppm cl2 < 1 No sensitivity % measured gas @ 5ppm no < -3 So2 sensitivity % measured gas @ 5ppm so2 < 0.1 H2 sensitivity % measured gas @ 100ppm h2 at 20oc < 10 C2h4 sensitivity % measured gas @ 100ppm c2h4 < 1 Nh3 sensitivity % measured gas @ 20ppm nh3 < 0.1 Key temperature range °c -30 to 50 Specifications Pressure range kpa 80 to 120 Humidity range % rh continuous 15 to 90 Storage period months @ 3 to 20°c (stored in sealed pot) 6 Load resistor o (isb circuit is recommended) 33 to 100 Weight g < 13 Isweek provide smoke, gas, humidity&temperature, uv, fluid or other kinds of sensors More details welcome to inquiry: skype:isweek_laura