{"product_id":"nitrogen-dioxide","title":"NO2 sensor","description":"\u003ch2\u003e\n  \u003cspan style=\"color: #fa0b0b;\"\u003e*\n    \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0631\/2414\/4387\/files\/NO2.pdf?v=1792734381\" rel=\"noopener\" target=\"_blank\" style=\"color: #fa0b0b;\"\u003e\n      \u003cu\u003eDownload datasheet\u003c\/u\u003e\n    \u003c\/a\u003e\n  *\u003c\/span\u003e\n\u003c\/h2\u003e\n\n\u003ch2\u003e\n  \u003cspan style=\"color: #fa0b0b;\"\u003e*\n    \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0631\/2414\/4387\/files\/Kunak_AIR_Pro_Co-location_test_NO2.pdf?v=1792734380\" rel=\"noopener\" target=\"_blank\" style=\"color: #fa0b0b;\"\u003e\n      \u003cu\u003eNO\u003csub\u003e2\u003c\/sub\u003e Co-location field study\u003c\/u\u003e\n    \u003c\/a\u003e\n  *\u003c\/span\u003e\n\u003c\/h2\u003e\n\n\u003cdiv class=\"pro_inner_rit\" style=\"font-family: Verdana, sans-serif; font-size: 14px; line-height: 1.6;\"\u003e\n\n  \u003ch2\u003eWhere is it found?\u003c\/h2\u003e\n\n  \u003cp style=\"font-weight: normal;\"\u003e\n    The major source of NO\u003csub\u003e2\u003c\/sub\u003e is the combustion of fossil fuels:\n    coal, oil and gas. Most of the NO\u003csub\u003e2\u003c\/sub\u003e in cities is derived\n    from motor vehicle exhausts.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-weight: normal;\"\u003e\n    Other sources of NO\u003csub\u003e2\u003c\/sub\u003e are petrol and metal refining,\n    electricity generation from coal-fired power stations,\n    other manufacturing industries and food processing.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eWhy is it harmful?\u003c\/h2\u003e\n\n  \u003cp style=\"font-weight: normal;\"\u003e\n    Nitrogen dioxide (NO\u003csub\u003e2\u003c\/sub\u003e) is a criteria pollutant that\n    contributes to the formation of photochemical smog, which has\n    a significant impact on human health.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-weight: normal;\"\u003e\n    Breathing increased levels of NO\u003csub\u003e2\u003c\/sub\u003e inflames the lining\n    of the lungs and reduces immunity to lung infections.\n    The result is wheezing, coughing, colds, flu and bronchitis,\n    as well as more frequent and intense asthma attacks.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eNO\u003csub\u003e2\u003c\/sub\u003e cartridge\u003c\/h2\u003e\n\n  \u003cp style=\"font-weight: normal;\"\u003e\n    The nitrogen dioxide cartridge contains an electrochemical sensor\n    with an embedded O\u003csub\u003e3\u003c\/sub\u003e filter, which\n    \u003cstrong\u003eeliminates the interferences produced by ozone\u003c\/strong\u003e,\n    making the cartridge ideal for measuring the concentrations found\n    in the atmosphere that vary from very low levels in clean\n    environments to high concentrations in polluted areas of cities\n    or industries.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-weight: normal;\"\u003e\n    The new Kunak algorithm corrects the effects of temperature\n    and humidity in this cartridge, significantly mitigating\n    the effect that these sensors suffer from fast humidity transients.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\n  \u003cdiv style=\"overflow-x: auto;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Verdana, sans-serif; font-size: 14px;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eType\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eElectrochemical\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eUnit of measurement\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eµg\/m\u003csup\u003e3\u003c\/sup\u003e, ppb\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eMeasurement range \u003csup\u003e(1)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e0–5,000 ppb\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eResolution \u003csup\u003e(2)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e1 ppb\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eOperating temperature range \u003csup\u003e(3)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e-30 to 50 °C\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eOperating RH range \u003csup\u003e(4)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e0 to 99 %RH\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eRecommended temp. \u0026amp; RH range \u003csup\u003e(5)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e\n            -30 to 45 °C\u003cbr\u003e\n            15 to 85 %RH\n          \u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eOperating life \u003csup\u003e(6)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e\u0026gt; 24 months\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eGuarantee range \u003csup\u003e(7)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e20 ppm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eLimit of Detection (LOD) \u003csup\u003e(8)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e2 ppb\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eRepeatability \u003csup\u003e(9)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e4 ppb\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eResponse time \u003csup\u003e(10)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e\u0026lt; 60 sec\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eTypical accuracy \u003csup\u003e(12)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e± 5 ppb\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eTypical precision R\u003csup\u003e2\u003c\/sup\u003e \u003csup\u003e(11)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e\u0026gt; 0.85\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eTypical slope \u003csup\u003e(11)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e0.78–1.29\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eTypical intercept (a) \u003csup\u003e(11)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e-4 ppb ≤ a ≤ +4 ppb\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eDQO - Typical U(exp) \u003csup\u003e(13)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e\u0026lt; 25%\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003eTypical intra-model variability \u003csup\u003e(14)\u003c\/sup\u003e\n\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #999; padding: 10px;\"\u003e\u0026lt; 1 ppb\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"font-size: 12px; margin-top: 24px; line-height: 1.7;\"\u003e\n    \u003col\u003e\n      \u003cli\u003e\n        \u003cstrong\u003eMeasurement range:\u003c\/strong\u003e\n        Concentration range measured by the sensor.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eResolution:\u003c\/strong\u003e\n        Smallest unit of measurement that can be indicated by the sensor.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eOperating temperature range:\u003c\/strong\u003e\n        Temperature interval at which the sensor is rated to operate safely\n        and provide measurements. In the PM sensor Type A: -40 to 50 °C\n        with heater (more information on this version on request).\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eOperating RH range:\u003c\/strong\u003e\n        Humidity interval at which the sensor is rated to operate safely\n        and provide measurements.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eRecommended RH range:\u003c\/strong\u003e\n        Recommended relative humidity range for optimal sensor performance.\n        Continuous exposure outside the recommended range may damage the cartridge.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eOperating life:\u003c\/strong\u003e\n        Time period during which the sensor can operate effectively and\n        accurately under normal conditions.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eGuarantee range:\u003c\/strong\u003e\n        Concentration range covered by Kunak's guarantee.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eLOD (Limit of Detection):\u003c\/strong\u003e\n        Measured at laboratory conditions at 20 °C and 50% RH.\n        The limit of detection is the minimum concentration that can be\n        detected as significantly different to zero gas concentration,\n        calculated according to the Technical Specification CEN\/TS 17660.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eRepeatability:\u003c\/strong\u003e\n        Measured at laboratory conditions at 20 °C and 50% RH.\n        Closeness of the agreement between the results of successive\n        measurements of the same measurand carried out under the same\n        conditions of measurement, calculated according to the\n        Technical Specification CEN\/TS 17660.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eResponse time:\u003c\/strong\u003e\n        Time needed by the sensor to reach 90% of the final stable value.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eTypical precision – R\u003csup\u003e2\u003c\/sup\u003e, slope and intercept:\u003c\/strong\u003e\n        Statistics obtained between the device hourly measurements and\n        reference instruments in field tests between -10 to +30 °C\n        at different locations. For the type B PM sensor, the expected\n        error for PM\u003csub\u003e10\u003c\/sub\u003e is higher in the presence of coarse particles.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eTypical accuracy:\u003c\/strong\u003e\n        For criteria pollutants, this is the average Mean Absolute Error\n        (MAE) obtained between the device hourly measurements and reference\n        instruments for 1 to 8 months of field tests between -10 to +30 °C\n        in different countries. For other pollutants, it is the expected\n        error of the measurement at the reading.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eDQO - Typical U(exp):\u003c\/strong\u003e\n        Data Quality Objective expressed as the Expanded Uncertainty in the\n        Limit Value obtained between the device hourly measurements and\n        reference instruments for 1 to 8 months of field tests between\n        -10 to +30 °C in different countries, calculated according to\n        the European Air Quality Directive 2024\/2881 and the Technical\n        Specification CEN\/TS 17660. For the type B PM sensor, the expected\n        error for PM\u003csub\u003e10\u003c\/sub\u003e is higher in the presence of coarse particles.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eTypical intra-model variability:\u003c\/strong\u003e\n        Calculated as the standard deviation of the three sensor means\n        in 1 to 8 months of field tests between -10 to +30 °C\n        in different countries.\n      \u003c\/li\u003e\n    \u003c\/ol\u003e\n\n    \u003cp\u003e\n      \u003cstrong\u003eA, B, C, D superindex:\u003c\/strong\u003e\n      The super indexes refer to different types of cartridges related\n      to the same target pollutant but with different technical specifications.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"DiamondSci","offers":[{"title":"Default Title","offer_id":49955631235331,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/2414\/4387\/files\/Nitreogen_dioxide_jpg.webp?v=1792734196","url":"https:\/\/diamondsci.com\/products\/nitrogen-dioxide","provider":"DiamondSci","version":"1.0","type":"link"}