Posted in | Gas Sensors

Industrial Nitrogen Dioxide Sensor - EC4-20-NO2

This Industrial Nitrogen Dioxide Sensor from SGX Sensortech weighs approximately 5 grams and has no orientation sensitivity.

Operating Conditions

The sensor operates within a temperature range of -20 to +50 °C, in humidity of 15-90% RH (non-condensing), and under pressure from 90-110 kPa. It can be stored for up to six months in its original packaging, within a temperature range of 0 to 20 °C, and has an expected operating life up around two years in air.

Performance Features

  • Range from 0-20 ppm
  • Response time (T90) under 30 seconds
  • Linear across full range
  • Maximum overload of 250 ppm
  • One year warranty
  • Long-term output drift of less than 2% signal/month
  • Baseline drift (-20 °C to +40 °C) of 0 to -0.5 ppm equivalent
  • Resolution of 0.1 ppm NO2
  • Sensitivity of 450 to 750 nA/ppm NO2
  • Zero in air at 20 °C, less than +0.4 µA
  • No bias
  • Negative output current


Cross-Sensitivity Data

Key Notes

  • Users should refrain from soldering the connector pins as this can be harmful to the sensor, and may therefore cause the warranty to be voided.
  • Performances indicated in specifications are based on environmental conditions of 20 °C, 50% relative humidity, 101 kPa.
  • Cross Sensitivity Data is solely for information purposes. Users are advised to calibrate with target gas, as the exactness of calibration and measurement cannot be guaranteed.
  • The cross sensitivities include gases stated in the table, but a response may also occur with other gases.
  • The cross sensitivities may oscillate between ± 30%, and can vary between batches or across sensor’s life time.
  • The sensor is created to meet RoHS compliance standards.

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