The NO2-A1 Alphasense NO2-A1 Gas Sensor is a 20mm diameter sensor, designed to monitor NO2 concentrations in the air and the formation of other air pollutants like ozone, particulate matter, and acid rain. Exposure to Nitrogen Dioxide can severely irritate airways and can aggravate respiratory diseases, particularly asthma. Overexposure can also lead to symptoms such as coughing, wheezing or difficulty breathing. People with asthma, as well as children and the elderly are generally at greater risk of the negative health effects of NO2. Note: Once an electrochemical (EC) sensor is purchased from CO2Meter.com and the sealed packaging is opened or the sensor module is installed, it is no longer eligible for return due to the limited operational lifespan that begins upon activation. The NO2 range also provides OEMs with strong signal levels combined with low zero current that low for resolution to 50 ppb and operating range to 20ppm. These sensors are suitable for inclusion in fixed or portable gas detectors and industries such as indoor air quality, urban air monitoring, stack gas analysis and gas safety markets. **Please Note: MOQ 10pcs - 2-4 week lead time** Features Accurate, Quality EC sensor Low Cross-Sensitivity across multiple gases Easy to use and integrate into portable or fixed gas detectors Electrolyte leak-free guarantee, reliable long-term detection performance No external power required, low maintenance Proven and trusted design - 90 day warranty Specifications Sensitivity: nA/ppm in 10ppm NO2 -250 to -650 Response time: t90 (s) from zero to 10ppm NO2 (33Ω Load Resistor)
