Interface type: STEMMA QT/Qwiic (I ² C welding free);Core chip: SGP41 (SGP40 Ultimate Upgraded Version);Detection range: VOC/NOx dual index 0-500;Working voltage: 3.3V ± 10% (supports 1.7-3.6V battery direct drive);Power consumption: 1.2mA (dual-mode)/0.1 μ A (standby); Working environment: -30 ° C~+70 ° C (industrial wide temperature range);Module size: 18mm * 25.3mm;I ² C Address: Fixed 0x59;Function: Precise recognition of dual gases, detection indicators, application scenarios, technological advantages NOx index: specializing in monitoring diesel vehicle emissions (NO ₂/NO) for automobile exhaust/combustion pollution;Dual signal parallel output: Single sampling synchronously obtains VOC Index+NOx Index (0-500 scale), response time<1 second; Application Scenario:Intelligent in car system;Real time monitoring:Excessive formaldehyde (VOC) in the car;Tunnel exhaust accumulation (NOx) → automatic switching of internal circulation;Industrial safety warning; Dual gas collaborative judgment:Diesel generator leakage (NOx ↑+VOC ↑) vs alcohol disinfection (VOC ↑ only);Urban Microclimate Station;Grid deployment monitoring of traffic pollution diffusion (NOx heat map generation); Color: Black Material: plastic Package Contents: 1*SGP41 VOC Sensor Module