Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	MOX (Metal Oxide) Gas Sensor
Detected Gases	TVOC, eCO2, Formaldehyde (HCHO)
Communication Interface	I2C
Operating Voltage	3.3V - 5V DC
Measurement Range (eCO2)	400 - 60000 ppm
Measurement Range (TVOC)	0 - 60000 ppb
Warm-up Time	Approx. 15 seconds for initial read
Dimensions	20mm x 15mm x 3mm
Compatibility	Arduino, Raspberry Pi, ESP32, ESP8266
Package Includes	1x SGP30 Module, 1x Pin Header Strip

6 reviews

Anonymous

Mar 27, 2026

Rating: 4/5

Good sensor, needs calibration time

The build quality is solid and the pinout is clear. Just remember that it needs a few days of continuous operation to fully calibrate the baseline for eCO2. Once calibrated, the data is very consistent.

Anonymous

Mar 25, 2026

Rating: 5/5

Reliable and compact

Small footprint makes it easy to fit into custom enclosures. The formaldehyde detection feature is a nice bonus for checking new furniture. Highly recommended for DIY air purifiers.

Anonymous

Mar 16, 2026

Rating: 5/5

Easy integration

Integrated this into a Home Assistant dashboard without any issues. The sensitivity is impressive; it picks up changes in air quality almost immediately when cooking or cleaning.

Anonymous

Mar 16, 2026

Rating: 5/5

Perfect for my smart home project

This upgraded SGP30 module works flawlessly with my ESP32. The I2C connection was straightforward, and the library examples provided accurate readings within minutes of warming up. Great for monitoring indoor air quality.

Anonymous

Mar 08, 2026

Rating: 4/5

Great value for the price

Compared to other NDIR sensors, this is much more affordable for student projects. While it estimates CO2 rather than measuring it directly like NDIR, the accuracy is sufficient for general trends and alerts.

Anonymous

Mar 07, 2026

Rating: 5/5

Excellent for plant monitoring

I use this to monitor CO2 levels in my small greenhouse setup. It helps me decide when to ventilate. The TVOC reading also helps detect any harmful off-gassing from new pots or soils.

5 FAQ

Q: Is a library available for Arduino IDE?

A: Yes, there are several open-source libraries available for the Arduino IDE, such as 'Adafruit SGP30' or 'SparkFun SGP30', which make reading data very simple.

Q: What is the expected lifespan of the sensor element?

A: Under normal operating conditions, the SGP30 sensor element has an expected lifetime of more than 10 years. Avoid exposing it to high concentrations of silicones or solvents to maintain longevity.

Q: How long does the sensor need to warm up before giving valid data?

A: The sensor typically requires about 15 seconds after power-on to provide initial readings. However, for the most accurate baseline calibration, it is recommended to run the sensor continuously for at least 7 days.

Q: Does this sensor measure actual CO2 or just estimate it?

A: The SGP30 calculates equivalent CO2 (eCO2) based on VOC and hydrogen measurements using an internal algorithm. It is not a direct NDIR CO2 sensor, but it provides highly accurate trends for indoor air quality monitoring.

Q: Can this module operate at 5V logic levels?

A: The sensor chip itself operates at 3.3V, but most breakout modules include a voltage regulator and level shifters, allowing them to safely connect to 5V microcontrollers like the Arduino Uno. Please check the specific module schematic.

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