SPEC Sensors’ RESP_IRR_20 is a Screen Printed ElectroChemical sensor component designed for the broad (non-specific) detection of respiratory irritant gases: NO2, Ozone, Chlorines, SO2, H2S and odorous gases.  This sensor is designed for “qualitative” assessment of ambient level respiratory irritants in applications like indoor air monitoring, air purifier controls, weather stations, smart homes, HVAC ventilation control, telemedicine equipment, and Smart Home.


  • Ultra-Low Power Sensor (with Circuit – < 10 uW max)
  • Sensitive – In the ppb range
  • Cold operation – No Heating required
  • Stable Response– Not affected by humidity, CO2, N2, Ar, most saturated hydrocarbons, hexane, and ammonia
  • Small Size& Low Profile – 20x20x3 mm
  • Easy to Use – Linear Response
  • Long Life – 10 years expected life
  • Fast Response – < 60 seconds
  • ROHS Compliant

Designed for the broad detection gases that irritate the eyes, nose, throat and lungs.

Sku: 110-901