{"product_id":"nexelec-block","title":"Nexelec BLOCK Air Quality Measurement Cartridge","description":"\u003cp\u003eThe Nexelec BLOCK is a plug-and-play air quality measurement cartridge that adds ozone (O3), nitrogen dioxide (NO2), or nitric oxide (NO) sensing to TRACK+ and TRACK+ RAIL air quality stations. Up to 5 BLOCK cartridges can be installed per station, allowing the pollutant mix to be tailored to the deployment without replacing the station itself.\u003c\/p\u003e\n\n\u003cp\u003eBLOCK cartridges are factory-calibrated and include real-time compensation for temperature and humidity effects to ensure stable, reliable measurements across all weather conditions. Replacement is tool-free and can be done on site without removing the station from its mount.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModular gas sensing for TRACK+ stations:\u003c\/strong\u003e Each TRACK+ or TRACK+ RAIL station accepts up to 5 BLOCK cartridges simultaneously. Choose ozone, NO2, or a mix — and redeploy or swap cartridges as monitoring needs change.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable variants:\u003c\/strong\u003e BLOCK O3 (ozone, X961LT), BLOCK NO2 (nitrogen dioxide, X962LT), and BLOCK NO (nitric oxide, X963LT). All variants share the same dimensions, performance spec, and lifespan.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory calibration:\u003c\/strong\u003e Each cartridge is factory-calibrated and characterized for guaranteed accuracy and repeatability across units and deployments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReal-time environmental compensation:\u003c\/strong\u003e On-board compensation for temperature and humidity effects stabilizes measurements and limits drift in variable outdoor conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-play installation:\u003c\/strong\u003e Tool-free field installation and replacement. Cartridges slot directly into the BLOCK bays on the host station. No wiring, no configuration required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimplified maintenance:\u003c\/strong\u003e Replaceable cartridges with a defined 2-year lifespan, combined with remote monitoring via the NAVIXIS platform, reduce field interventions, costs, and downtime.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact and lightweight:\u003c\/strong\u003e 48 × 42 × 39 mm, 50 g — fits entirely within the TRACK+ station enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAdding ozone, NO2, or nitric oxide monitoring to existing TRACK+ outdoor air quality stations\u003c\/li\u003e\n  \u003cli\u003eExpanding TRACK+ RAIL underground railway stations with gas pollutant sensing\u003c\/li\u003e\n  \u003cli\u003eUrban air quality monitoring networks requiring flexible pollutant coverage\u003c\/li\u003e\n  \u003cli\u003eIndustrial perimeter monitoring for ozone and nitrogen dioxide emissions\u003c\/li\u003e\n  \u003cli\u003eRegulatory compliance monitoring requiring multi-pollutant measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBLOCK cartridges require a TRACK+ (X950LS) or TRACK+ RAIL (X951LS) host station. They do not operate independently and have no wireless connectivity of their own.\u003c\/li\u003e\n  \u003cli\u003eEach station accepts a maximum of 5 BLOCK cartridges. Cartridges are ordered separately from the host station.\u003c\/li\u003e\n  \u003cli\u003eCartridge lifespan is 2 years. Plan for scheduled replacement as part of ongoing station maintenance.\u003c\/li\u003e\n  \u003cli\u003eOperating humidity range is 15–90% RH — confirm suitability for high-humidity deployment sites.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eBLOCK O3 (X961LT) — Ozone\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMeasuring range\u003c\/td\u003e\n\u003ctd\u003e0–1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMinimum detection limit\u003c\/td\u003e\n\u003ctd\u003e5 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e5 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLifespan\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eBLOCK NO2 (X962LT) — Nitrogen Dioxide\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMeasuring range\u003c\/td\u003e\n\u003ctd\u003e0–1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMinimum detection limit\u003c\/td\u003e\n\u003ctd\u003e5 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e5 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLifespan\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eBLOCK NO (X963LT) — Nitric Oxide\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMeasuring range\u003c\/td\u003e\n\u003ctd\u003e0–1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMinimum detection limit\u003c\/td\u003e\n\u003ctd\u003e5 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e5 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLifespan\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eMechanical\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e48 × 42 × 39 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e50 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eEnvironmental\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e−20°C to +50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating humidity\u003c\/td\u003e\n\u003ctd\u003e15–90% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHost stations\u003c\/td\u003e\n\u003ctd\u003eTRACK+ (X950LS), TRACK+ RAIL (X951LS)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSlots per station\u003c\/td\u003e\n\u003ctd\u003eUp to 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOrdering\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eX961LT\u003c\/td\u003e\n\u003ctd\u003eBLOCK O3 — Ozone measurement cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eX962LT\u003c\/td\u003e\n\u003ctd\u003eBLOCK NO2 — Nitrogen dioxide measurement cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eX963LT\u003c\/td\u003e\n\u003ctd\u003eBLOCK NO — Nitric oxide measurement cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Documents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/support.nexelec.fr\/en\/support\/solutions\/articles\/80001185820-fiche-technique\" title=\"Datasheet D1129A_EN\" rel=\"noopener\" target=\"_blank\"\u003eDataSheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/mcci.com\/contact\/\" target=\"_blank\"\u003eContact us\u003c\/a\u003e to discuss BLOCK cartridge quantities or TRACK+ station configurations.\u003c\/p\u003e\n\n\u003ch5\u003eMCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.\u003c\/h5\u003e","brand":"Nexelec","offers":[{"title":"BLOCK O3","offer_id":53900050366782,"sku":"123004192","price":890.0,"currency_code":"USD","in_stock":true},{"title":"BLOCK NO2","offer_id":53900060459326,"sku":"123004193","price":890.0,"currency_code":"USD","in_stock":true},{"title":"BLOCK NO","offer_id":53900060492094,"sku":"123004194","price":890.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/5104\/files\/BLOCKO3.png?v=1784033896","url":"https:\/\/store.mcci.com\/products\/nexelec-block","provider":"MCCI","version":"1.0","type":"link"}