Enhanced Sensing Technology: Utilize the latest SGP40 sensor for precise air quality monitoring. Detects volatile organic compounds (VOCs) efficiently, ensuring healthier indoor environments. Compatibility: Seamlessly integrates with for STEMMA QT and Qwiic systems, making it perfect for DIY enthusiasts and educational projects in science, technology, engineering, and mathematics (STEM). Easy Integration: Designed for quick setup and use, this sensor module is ideal for both beginners and advanced users looking to enhance their hardware projects with reliable air quality tracking. Features Technical advantages: Patented MEMS micro-hotplate Heating gas molecule ionization detection, anti-humidity interference (built-in humidity compensation algorithm). Automatic calibration Long-term use without drift (lifespan 10 years). Anti-silicon pollution design Avoid sensor failure caused by daily chemicals such as and glue. Sensirion SGP40 digital VOC sensor module Precise volatile organic compound detection/Ultra-low power design Interface type: for STEMMA QT / Qwiic (IC solder-free) Core chip: Sensirion SGP40 VOC index intelligent output: Directly output VOC Index (0-500 scale), no complex calibration required to judge air quality: 0-100: Excellent 100-200: Medium 200: Poor Response time less than equal 2 seconds, dynamically tracking instantaneous changes such as human exhalation and formaldehyde release Energy efficiency ratio : Working current 0.95mA (60% lower than competitors), battery life increased by more than 3 times Precise VOC monitoring principle Technical specifications: Detection range: VOC Index 0-500 (covering all daily scenarios) Operating voltage: 3.3V 10% Power consumption: 0.95mA (operating) / 0.05A (standby) Operating temperature: -10 - +50 IC address: fixed 0x59 Application scenario Smart home: fresh air system linkage (VOC 150 automatic ventilation) In-vehicle purification: real-time monitoring of formaldehyde/smoke in the car Healthcare: environmental warning device for asthma patients Building control: conference room CO accumulation auxiliary monitoring Color:As Shown Material:PCB Package Contents: 1 * SGP40 Module 1 * pin header (need to be soldered) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.