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The Adafruit ENS161 MOX Gas Sensor is a compact air quality breakout for detecting gas and air quality changes. It uses the ENS161 sensor, which includes multiple metal-oxide sensing elements for more detailed indoor air monitoring.
This sensor can provide TVOC, eCO2, and Air Quality Index data, making it useful for air quality monitors, smart home sensors, and environmental projects. It connects through I2C or SPI and supports STEMMA QT / Qwiic for quick wiring with compatible boards.
The breakout includes a 3.3V regulator and level shifting, so it can work with both 3.3V and 5V systems.
Features:
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ENS161 MOX gas sensor
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Detects air quality changes
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Outputs TVOC, eCO2, and AQI data
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Multiple metal-oxide sensing elements
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I2C and SPI interface
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STEMMA QT / Qwiic compatible
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Works with 3.3V and 5V systems
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Built-in 3.3V regulator and level shifting
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Supports temperature and humidity compensation with an external sensor
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Product dimensions: 25.5mm × 17.7mm × 4.7mm
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Product weight: 1.6g
FAQ
Will this ship from Manila?
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Do you ship nationwide?
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Can I get this on a school PO or class order?
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Is this compatible with Arduino, ESP32, or Raspberry Pi?
Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.
What's your return policy?
7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.
Do you offer technical support?
Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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