Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	AGS02MA
Sensor Type	MEMS TVOC Gas Sensor
Detection Range	0 - 5000 ppb
Interface	I2C / UART
Operating Voltage	3.3V DC
Response Time	< 60 seconds
Operating Temperature	-20°C to 60°C
Dimensions	14 x 14 x 2.8 mm
Application	Industrial Air Quality Monitoring
Manufacturer	ASAIR (Aosong)

6 reviews

Anonymous

Mar 24, 2026

Rating: 4/5

Good value, easy integration

Works well with ESP32 microcontrollers. The documentation could be slightly more detailed regarding calibration cycles, but overall it performs as expected for the price point.

Anonymous

Mar 18, 2026

Rating: 5/5

Reliable MEMS technology

We deployed fifty of these units across a factory floor. They have been running continuously for three months without drift issues. The response time is impressive for detecting volatile compounds.

Anonymous

Mar 15, 2026

Rating: 4/5

Great for DIY projects

Bought this for a custom air purifier build. It detects cooking fumes and cleaning products accurately. Just ensure you provide a clean 3.3V power supply to avoid noise in readings.

Anonymous

Mar 13, 2026

Rating: 5/5

Perfect for IAQ monitoring

Using these to monitor indoor air quality in office spaces. They alert us quickly when ventilation needs improvement. Very satisfied with the sensitivity and stability.

Anonymous

Mar 04, 2026

Rating: 5/5

Compact and robust

The small form factor fits perfectly into our compact enclosure designs. Data output is linear and easy to parse. No issues with humidity interference in our tests.

Anonymous

Mar 04, 2026

Rating: 5/5

Excellent precision for industrial use

Integrated this sensor into our HVAC monitoring system. The I2C communication is stable and the TVOC readings are consistent with our lab equipment. Highly recommended for professional applications.

5 FAQ

Q: Can this module detect carbon monoxide specifically?

A: No, this is a TVOC (Total Volatile Organic Compounds) sensor. It measures a broad range of organic gases but is not specific to Carbon Monoxide (CO).

Q: Does this sensor require a warm-up period before accurate readings?

A: Yes, the AGS02MA typically requires a short warm-up period of about 3 minutes after power-on to stabilize the MEMS element for optimal accuracy.

Q: How often does the sensor need recalibration?

A: Under normal operating conditions, the sensor maintains calibration for over 2 years. However, exposure to extreme concentrations of solvents may require earlier recalibration.

Q: Is there a library available for Arduino?

A: Yes, ASAIR provides a dedicated Arduino library for the AGS02MA series which can be found on our official GitHub repository or via the Arduino Library Manager.

Q: What is the maximum cable length for the I2C connection?

A: For reliable I2C communication, we recommend keeping cable lengths under 20cm. For longer distances, consider using an I2C extender or switching to the UART interface if supported by your firmware.

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