Technical Specifications

COCO₂NONO₂O₂O₃H₂SSO₂NH₃VOCsCH₄HClHCN
TypeElectrochemicalNon-dispersive infrared (NDIR)ElectrochemicalElectrochemicalElectrochemicalElectrochemicalElectrochemicalElectrochemicalElectrochemicalPhoto-ionization detectorNDIR (A)N.A. (C)TDLAS (D)
Unit of measurementµg/m³, ppb (A)mg/m³, ppm (B)mg/m³, ppmµg/m³, ppbµg/m³, ppb%µg/m³, ppbµg/m³, ppb (A) / mg/m³, ppm (B)µg/m³, ppbmg/m³, ppmµg/m³, ppb (A) / mg/m³, ppm (B)mg/m³, ppmmg/m³, ppm
Measurement range0–12,000 ppb (A) / 0–500 ppm (B)0–5,000 ppm0–5,000 ppb0–5,000 ppb0–30%0–2,000 ppb0–2,000 ppb (A) / 0–20 ppm (B)0–10,000 ppb / 0–50 ppm (A) / 0–1,500 ppm (B)0–50 ppm (C)0–3,000 ppb (A) / 0–40 ppm (B)1,000–50,000 ppm (5% vol) (A)2–300 ppm (C)0–1,000 ppm (D)
Resolution1 ppb (A) / 0.01 ppm (B)0.01 ppm1 ppb1 ppb0.01%1 ppb1 ppb (A) / 0.01 ppm (B)1 ppb0.01 ppm1 ppb (A) / 0.01 ppm (B)100 ppm (A)0.01 ppm (C-D)0.01 ppm
Operating temperature range-30 to 50°C-20 to 50°C-30 to 45°C-30 to 45°C-30 to 50°C-30 to 45°C-30 to 50°C-30 to 40°C-10 to 50°C (A) / -20 to 43°C (B) / -20 to 40°C (C)-40 to 60°C-20 to 50°C (A) / -30 to 60°C (B)-20 to 50°C-20 to 45°C
Operating RH range0–99% RH0–99% RH0–99% RH0–99% RH0–99% RH (short periods)0–99% RH0–99% RH0–99% RH0–99% RH0–99% RH (A) / 10–99% RH (C) / 0–98% RH (D)0–99% RH0–99% RH0–99% RH
Recommended RH range15–90% RH15–95% RH15–85% RH15–85% RH5–95% RH15–85% RH15–90% RH15–90% RH15–90% RH0–99% RH15–95% RH (A) / 15–90% RH (C)15–90% RH15–90% RH
Operating life>24 months>4 years>24 months>24 months>4 years>24 months>24 months>24 months>24 months10,000 hours / >4 years (A) / >24 months (C) / >5 years (D)>24 months>24 months>24 months
Guarantee range1,000 ppm – 20 ppm20 ppm50%20 ppm100 ppm100 ppm100 ppm (A) / 5,000 ppm (B)200 ppm (C)50 ppm (A) / 60 ppm (B)100% vol (A) / 10,000 ppm (C-D)200 ppm200 ppm200 ppm
Limit of detection (LOD)10 ppb (A) / 0.02 ppm (B)–2 ppb2 ppb–3 ppb2 ppb (A) / 0.01 ppm (B)3 ppb0.02 ppm (A-C) / 0.15 ppm (B)1 ppb (A) / 0.01 ppm (B)1,000 ppm (A) / <0.05 ppm (C-D)0.01 ppm0.02 ppm
Repeatability20 ppb (A) / 0.05 ppm (B)–4 ppb4 ppb–4 ppb4 ppb (A) / 0.01 ppm (B)5 ppb0.03 ppm (A) / 0.5 ppm (B) / 0.1 ppm (C)5 ppb (A) / 0.02 ppm (B)500 ppm (A) / <0.35 ppm (C) / <0.30 ppm (D)0.02 ppm0.03 ppm
Response time<30 sec (A) / <180 sec (B)<30 sec<30 sec<60 sec<10 sec<70 sec<60 sec<60 sec<45 sec (A) / <90 sec (B-C)<12 sec (A) / <10 sec (B)<90 sec (A) / <120 sec (C) / <20 sec (D)<45 sec<160 sec
Typical accuracy±80 ppb (A) / ±0.1 ppm (B)±20 ppm±4 ppb±5 ppb±0.3%±8 ppb±10 ppb (A) / ±0.05 ppm (B)±15 ppb±0.3 ppm (A) / ±1.5 ppm (B) / ±0.5 ppm (C)–±3% of F.S. (A) / ±1 ppm +10% of reading (C) / ±0.5 ppm +1% of reading (D)±0.1 ppm±0.1 ppm
Typical precision – R²>0.85>0.8>0.9>0.85–>0.9>0.75>0.7––<0.85 (C) / <0.90 (D)––
Typical slope0.78–1.290.6–1.660.9–1.120.78–1.29–0.85–1.180.78–1.290.78–1.29–––––
Typical intercept (a)-50 ppb ≤ a ≤ +50 ppb (A) / -0.1 ppm ≤ a ≤ +0.1 ppm (B)-170 ppm ≤ a ≤ 170 ppm-2 ppb ≤ a ≤ +2 ppb-4 ppb ≤ a ≤ +4 ppb–-3 ppb ≤ a ≤ +3 ppb-5 ppb ≤ a ≤ +5 ppb (A) / -0.05 ppm ≤ a ≤ +0.05 ppm (B)-5 ppb ≤ a ≤ +5 ppb–––––
DQO – Typical U(exp)<20%–<20%<25%–<20%–<25%–––––
Typical intra-model variability<3 ppb (A) / <0.05 ppm (B)<0.5 ppm<1 ppb<1 ppb0.1%<1 ppb<2 ppb (A) / <0.02 ppm (B)<3 ppb<0.1 ppm (A-C) / <0.2 ppm (B)<3 ppb (A) / <0.1 ppm (B)<500 ppm (A)<0.1 ppm<0.1 ppm
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  1. Measurement range: concentration range measured by the sensor.
  2. Resolution: smallest unit of measurement that can be indicated by the sensor.
  3. Operating temperature range: temperature interval at which the sensor is rated to operate safely and provide measurements.
  4. Operating RH range (Recommended RH range): humidity interval at which the sensor is rated to operate safely and provide measurements.
  5. Operating life: lifetime of the sensor at normal conditions.
  6. Guarantee range: limit covered by the guarantee.
  7. LOD (Limit Of Detection): measured at laboratory conditions at 20ºC and 50% RH. The limit of detection is the minimum concentration that can be detected as significantly different at zero gas concentration, based on the metric from the Technical Specification CEN/TS 17660-1:2022.
  8. Repeatability (measured at laboratory conditions at 20ºC and 50% RH): closeness of the agreement between the results of successive measurements of the same measure carried out under the same conditions of measurement, based on the metric from the Technical Specification CEN/TS 17660-1:2022.
  9. Response time: time needed by the sensor to reach 90% of the final stable value.
  10. Statistical metric: statistics obtained between hourly measurements of the device and the reference instruments for 1 to 8 months field test between -10 to +30 ºC in different countries. (*) The expected error for PM10 is higher in presence of coarse particles.
  11. DQO-Typical U(exp): Data Quality Objective expressed as the Expanded Uncertainty in the Limit Value obtained between hourly measurements of the device and the reference instruments for 1 to 8 months field test between -10 to +30ºC in different countries, based on the metric from the European Air Quality Directive 2008/50/EC and from the Technical Specification CEN/TS 17660- 1:2022. (*) The expected error for PM10 is higher in presence of coarse particles.
  12. Typical intra-model variability: calculated as the standard deviation of the three sensor means in 1 to 8 months field test between -10 to +30ºC in different countries.
PM₁PM₂.₅PM₄PM₁₀TSPTPC
TypeOptical particle counterOptical particle counterOptical particle counterOptical particle counterOptical particle counterOptical particle counter
Unit of measurementµg/m³µg/m³µg/m³µg/m³µg/m³counts/cm³
Measurement range0 – 1,000 µg/m³0 – 2,000 µg/m³
0 – 1,000 µg/m³		0 – 2,000 µg/m³0 – 10,000 µg/m³
0 – 1,000 µg/m³		0 – 15,000 µg/m³0 – 8,000 counts/cm³
Resolution1 µg/m³1 µg/m³1 µg/m³1 µg/m³1 µg/m³1 counts/cm³
Operating temp. range-10 to 50 °C-10 to 50 °C-10 to 50 °C-10 to 50 °C-10 to 50 °C-10 to 50 °C
Operating RH range0 to 99 %RH0 to 99 %RH0 to 99 %RH0 to 99 %RH0 to 99 %RH0 to 99 %RH
Recommended RH range0 to 95 %RH0 to 95 %RH0 to 95 %RH0 to 95 %RH0 to 95 %RH0 to 95 %RH
Operating life> 24 months> 24 months> 24 months> 24 months> 24 months> 24 months
LOD – Limit of Detection0.5 µg/m³0.5 µg/m³0.5 µg/m³0.5 µg/m³1 µg/m³–
Repeatability2 µg/m³3 µg/m³3 µg/m³5 µg/m³6 µg/m³–
Response Time< 10 sec< 10 sec< 10 sec< 10 sec< 10 sec< 10 sec
Typical Accuracy – MAE±2 µg/m³±3 µg/m³±3 µg/m³±4 µg/m³±6 µg/m³–
Typical precision – R²> 0.9> 0.8> 0.8> 0.7> 0.7> 0.8
Typical Slope0.85 – 1.180.85 – 1.180.85 – 1.180.85 – 1.180.85 – 1.18–
Typical Intercept-1.8 µg/m³-2 µg/m³-2 µg/m³-3 µg/m³-4 µg/m³–
DQO – Typical U(eqv)≤ 50%≤ 50%≤ 50%≤ 50%≤ 50%–
Typical Intra-model variability< 2 µg/m³< 2 µg/m³< 2 µg/m³< 2 µg/m³< 2 µg/m³–
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