Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Type | MOX (Metal Oxide) Multi-Pixel Gas Sensor |
| Detected Gases | TVOC, CO2 equivalent, Formaldehyde (HCHO) |
| Interface | I2C Digital Interface |
| Operating Voltage | 3.3V DC |
| Measurement Range (CO2) | 400 - 60,000 ppm |
| Measurement Range (TVOC) | 0 - 60,000 ppb |
| Accuracy | +/- 15% typical for TVOC and CO2eq |
| Warm-up Time | Approx. 15 seconds to stable reading |
| Dimensions | 13 x 13 x 3.5 mm |
| Application | HVAC systems, Air Purifiers, Smart Home Devices |
Anonymous
Mar 24, 2026
Rating: 3/5
Works well but sensitive to humidity
The sensor performs as expected regarding VOC detection, but I noticed some drift in readings during very humid conditions. Adding a separate humidity sensor for compensation improved accuracy significantly.
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for my smart air monitor project
This SGP30 module integrated seamlessly with my ESP32 setup. The I2C communication is stable, and the baseline calibration feature works well after a few days of operation. Great value for monitoring indoor air quality trends.
Anonymous
Mar 19, 2026
Rating: 4/5
Great for relative changes
While it measures CO2 equivalent rather than direct NDIR CO2, it is fantastic for tracking relative air quality changes in real-time. It reacts quickly to alcohol sprays and cleaning products, helping me ventilate at the right times.
Anonymous
Mar 13, 2026
Rating: 5/5
Reliable and compact
Small footprint makes it easy to fit into custom enclosures. The data sheet is clear, and the library support for Arduino and Python is robust. Highly recommended for DIY environmental stations.
Anonymous
Mar 09, 2026
Rating: 4/5
Good sensor, needs patience for calibration
The sensor provides consistent readings once it has run for about a week to establish a baseline. Initially, the CO2 equivalent numbers were a bit high, but they normalized over time. Excellent for detecting cooking fumes and VOCs.
Anonymous
Mar 06, 2026
Rating: 5/5
Bulk purchase for classroom kits
Bought ten of these for our student workshops. All units worked out of the box. Students found the data visualization aspect very engaging. Durable enough for repeated handling.
Q: Can this detect natural gas leaks?
A: No, this sensor is optimized for Volatile Organic Compounds (VOCs), CO2 equivalent, and formaldehyde. It is not designed or certified for detecting combustible gases like methane or natural gas leaks. Please use a dedicated combustible gas sensor for that purpose.
Q: Is this compatible with 5V Arduino boards?
A: The SGP30 operates at 3.3V. While many Arduino boards have 3.3V pins, you must ensure your I2C lines are logic-level shifted if your microcontroller operates strictly at 5V to prevent damaging the sensor.
Q: How long does the sensor need to run before readings are accurate?
A: The sensor requires an initial warm-up of about 15 seconds to provide data. However, for the highest accuracy, it needs to operate continuously for approximately 7 days to automatically calibrate its baseline to your specific environment.
Q: What is the expected lifespan of the sensor element?
A: Under normal operating conditions within specified temperature and humidity ranges, the sensor element typically has a lifespan of over 10 years. Performance may degrade faster if exposed to silicon vapors, high concentrations of solvents, or extreme environments.
Q: Does this sensor measure actual CO2 or just an equivalent value?
A: The SGP30 calculates a CO2 equivalent (CO2eq) value based on the hydrogen and ethanol signals detected by the MOX sensors. It does not use NDIR technology for direct CO2 measurement, making it ideal for trend monitoring rather than precise scientific CO2 quantification.
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