air & gas sensors 19 in stock
Air Quality and Gas Sensors for IoT Projects
Air quality, particulate matter, VOC, CO2, and combustible-gas sensors for monitoring, safety, and environmental data logging. Covers indoor air quality (IAQ) and basic detection use cases.
I2C, UART, and analog interfaces. Compatible with ESP32, Arduino, and Raspberry Pi.
// frequently asked
Q: Which sensor for indoor air quality (IAQ)?Multi-gas I2C sensors that report VOC, CO2-equivalent, and humidity work best. They self-calibrate over time and run on low power for battery use.
Q: Do I need to calibrate gas sensors?Most need a warm-up period of 24–48 hours on first power-up. Specialized industrial sensors require calibration in a known-clean environment.
Q: Will this ship from Manila?Yes — same-day 4 PM cutoff weekdays.
Q: Are these accurate enough for safety monitoring?Hobby-grade gas sensors are good for trend monitoring and early warning. For life-safety applications (CO detection, industrial), use a certified detector.
Q: What's your return policy?7-day DOA window. Replacement or refund.
Q: Do you offer technical support?Yes — forum and email. Weekday and weekend response.
// filters
10 stock
SKU: SEN0159
DFRobot Gravity MG811 Analog CO2 Gas Sensor
1 left
SKU: SEN0131