{"product_id":"nexelec-x951ls","title":"Nexelec TRACK+ RAIL Air Quality Monitoring Station for Underground Railway Stations","description":"\u003cp\u003eThe Nexelec TRACK+ RAIL is an air quality monitoring station designed specifically for underground railway stations. It measures fine particulate matter (PM1, PM2.5, PM5), CO2, temperature, humidity, and atmospheric pressure using a PM sensor optimized for the iron-rich brake and wheel dust characteristic of underground rail environments. TRACK+ RAIL supports LoRaWAN and optional 4G LTE connectivity with local SD card data logging.\u003c\/p\u003e\n\u003cp\u003eBased on the TRACK+ outdoor platform, TRACK+ RAIL substitutes a rail-specific PM sensor for the standard outdoor unit, adds a CO2 channel, and shares the same modular BLOCK architecture for future sensor extensions. Power supply adapts to site conditions: AC mains, DC voltage, LFP battery, or optional solar panel.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine particle measurement (PM) — optimized for underground railways:\u003c\/strong\u003e Sensor specifically designed to measure fine particles characteristic of underground rail environments (PM1, PM2.5, PM5 by mass). Laser optical sensing with AirFlow 360° sampling. Air is heated before measurement to eliminate the effect of ambient humidity on readings. Validated by an independent metrology laboratory. Mass measurement range: 0–1,000 µg\/m³.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCO2 measurement:\u003c\/strong\u003e Resolution 1 ppm, accuracy 30 ppm or ±3%, range 0–10,000 ppm — monitors ventilation effectiveness and occupant comfort in underground stations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature measurement:\u003c\/strong\u003e Resolution 0.1°C, accuracy ±0.3°C, range −30°C to +70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity measurement:\u003c\/strong\u003e Resolution 0.5% RH, accuracy ±2% RH, range 0–100% RH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAtmospheric pressure:\u003c\/strong\u003e Resolution 1 hPa, accuracy ±2.5 hPa, range 300–1,100 hPa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirFlow 360°:\u003c\/strong\u003e Well-ventilated aerosol sampling system allows fine particles to enter from all angles without blind spots, while providing effective protection against the environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBLOCK modular expansion:\u003c\/strong\u003e 5 slots for adding measurement cartridges (ozone, NO2, and other gases), ensuring flexibility and scalability without replacing the station.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoRaWAN connectivity:\u003c\/strong\u003e LoRaWAN standard (X951LS). Open protocol — measurements can be used freely in any compatible monitoring software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4G LTE connectivity (optional, P061 CELLULAR):\u003c\/strong\u003e Multi-operator SIM card supplied with the station, providing network coverage in over 150 countries. Includes 5 years' access to the NAVIXIS web platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal data logger:\u003c\/strong\u003e Built-in SD card stores up to 20 years of measurements in CSV format — ensures data continuity in radio dead zones or network outages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible power supply:\u003c\/strong\u003e Operates on AC mains (110–230V), DC voltage (5–35V), or LFP lithium battery (100 Wh, up to 3 days autonomy). Optional solar panel kit (P066). Battery recharges automatically when mains power is restored.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNFC configuration:\u003c\/strong\u003e Configuration, diagnostics, and firmware updates via the Nexelec TOUCH mobile app over NFC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd-to-end encryption:\u003c\/strong\u003e Double AES-128 encryption on all transmitted data\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED status indicators:\u003c\/strong\u003e Status of the various station components visible via onboard LEDs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced maintenance:\u003c\/strong\u003e No maintenance required for the PM sensor for 1 year in standard configuration. Wearing parts (PM sensor, battery) are replaceable on site without removing the station from its mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsect barrier:\u003c\/strong\u003e Integrated pest screen preserves measurement reliability and is easy to maintain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple installation:\u003c\/strong\u003e Wall mounting kit and pole mounting kit both included. Pole kit fits diameters from 60 to 400 mm. Standard tools only (Phillips screwdriver).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNAVIXIS platform integration:\u003c\/strong\u003e Measurement visualization, CSV export, API\/webhook connection, configurable email and SMS alerts, fleet management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFine particle monitoring in metro, subway, and underground railway stations\u003c\/li\u003e\n\u003cli\u003eBrake and wheel dust exposure monitoring on station platforms and concourses\u003c\/li\u003e\n\u003cli\u003eCO2-based ventilation monitoring in underground passenger spaces\u003c\/li\u003e\n\u003cli\u003eRegulatory compliance monitoring for underground rail air quality standards\u003c\/li\u003e\n\u003cli\u003eFleet management of monitoring stations across multiple underground sites\u003c\/li\u003e\n\u003cli\u003eIntegration with NAVIXIS platform for dashboard visualization, threshold alerts, and data export\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for use in underground railway environments and equivalent sheltered outdoor installations. Operating range: −20°C to +60°C, 0–95% RH non-condensing.\u003c\/li\u003e\n\u003cli\u003eThe PM sensor is optimized for underground railway fine particles. It measures PM1, PM2.5, and PM5 only — PM0.5 and PM10 channels are not available on this variant.\u003c\/li\u003e\n\u003cli\u003ePM sensor maintenance interval is 1 year in standard configuration, shorter than the 5-year interval on the standard TRACK+ outdoor station.\u003c\/li\u003e\n\u003cli\u003e4G LTE connectivity (P061 CELLULAR) and solar power kit (P066) are optional — contact us to discuss your configuration.\u003c\/li\u003e\n\u003cli\u003eBLOCK sensor cartridges (ozone, NO2, and other gases) are ordered separately. Up to 5 BLOCK slots available per station.\u003c\/li\u003e\n\u003cli\u003eLoRaWAN gateway not included. A LoRaWAN network must be available at the installation site when using LoRaWAN connectivity.\u003c\/li\u003e\n\u003cli\u003eLFP battery autonomy of 3 days is standard; actual autonomy depends on configuration and measurement frequency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"5\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eParticulate Matter (PM)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels (by mass)\u003c\/td\u003e\n\u003ctd\u003ePM1, PM2.5, PM5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor optimization\u003c\/td\u003e\n\u003ctd\u003eDesigned for underground railway fine particles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1 µg\/m³ or 1 pcs\/cm³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRepeatability error\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinearity error\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMass measurement range\u003c\/td\u003e\n\u003ctd\u003e0–1,000 µg\/m³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement mode\u003c\/td\u003e\n\u003ctd\u003eContinuous or intermittent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity compensation\u003c\/td\u003e\n\u003ctd\u003eAir heated before measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSampling\u003c\/td\u003e\n\u003ctd\u003eAirFlow 360° — all-angle entry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eCarbon Dioxide (CO2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e30 ppm or ±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement range\u003c\/td\u003e\n\u003ctd\u003e0–10,000 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.3°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement range\u003c\/td\u003e\n\u003ctd\u003e−30°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eHumidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.5% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±2% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement range\u003c\/td\u003e\n\u003ctd\u003e0–100% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eAtmospheric Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±2.5 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement range\u003c\/td\u003e\n\u003ctd\u003e300–1,100 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRadio (X951LS)\u003c\/td\u003e\n\u003ctd\u003eLoRaWAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4G LTE (optional, P061)\u003c\/td\u003e\n\u003ctd\u003eMulti-operator SIM card included; coverage in 150+ countries; 5 years' connectivity included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEncryption\u003c\/td\u003e\n\u003ctd\u003eDouble AES-128 end-to-end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eData Storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal storage\u003c\/td\u003e\n\u003ctd\u003eBuilt-in SD card, up to 20 years of data in CSV format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eExpansion\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBLOCK slots\u003c\/td\u003e\n\u003ctd\u003e5 modular slots for additional sensor cartridges (ozone, NO2, etc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC mains\u003c\/td\u003e\n\u003ctd\u003e110–230V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input\u003c\/td\u003e\n\u003ctd\u003e5–35V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLFP battery\u003c\/td\u003e\n\u003ctd\u003e100 Wh, up to 3 days autonomy; auto-recharge when mains power returns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar (optional, P066)\u003c\/td\u003e\n\u003ctd\u003e20 Wp solar panel with mounting bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethod\u003c\/td\u003e\n\u003ctd\u003eNFC (Nexelec TOUCH app, Android \/ iOS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eMechanical\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e318 × 229 × 97 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eWall or pole (both kits included); pole diameter 60–400 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eEnvironmental\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e−20°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating humidity\u003c\/td\u003e\n\u003ctd\u003e0–95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003e1× TRACK+ RAIL station\u003cbr\u003e1× Wall mounting kit\u003cbr\u003e1× Pole mounting kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOrdering\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX951LS\u003c\/td\u003e\n\u003ctd\u003eTRACK+ RAIL LoRaWAN underground railway air quality station\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP061\u003c\/td\u003e\n\u003ctd\u003eCELLULAR option (4G LTE + multi-operator SIM + 5 years NAVIXIS access)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP066\u003c\/td\u003e\n\u003ctd\u003eSOLAR option (20 Wp solar panel + mounting bracket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eOptional Accessories\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/store.mcci.com\/products\/nexelec-p066\" target=\"_blank\"\u003eSolar Power Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/store.mcci.com\/products\/nexelec-po61\" target=\"_blank\"\u003eLTE 4G Cellular Connectivity\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Documents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/support.nexelec.fr\/helpdesk\/attachments\/80515293808\" title=\"Datasheet D1130A_EN\" rel=\"noopener\" target=\"_blank\"\u003eDataSheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/mcci.com\/contact\/\" rel=\"noopener\" target=\"_blank\"\u003eContact us\u003c\/a\u003e to discuss configuration options, BLOCK sensor cartridges, or NAVIXIS platform access.\u003c\/p\u003e\n\u003ch5\u003eLoRa is a registered trademark of Semtech Corporation. LoRaWAN is a trademark of the LoRa Alliance. MCCI 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":"LoRaWAN Only \/ US915","offer_id":53900038701374,"sku":"123004191","price":5490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/5104\/files\/TRACK_1_1_fc3bd798-a0e4-42be-b333-40b61a280674.png?v=1784033731","url":"https:\/\/store.mcci.com\/products\/nexelec-x951ls","provider":"MCCI","version":"1.0","type":"link"}