Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface | I2C / UART |
| Supply Voltage | 3.3V - 5V DC |
| CO2 Measurement Range | 400 - 65535 ppm |
| TVOC Measurement Range | 0 - 65535 ppb |
| CO2 Accuracy | ±15% ±50ppm |
| Module Dimensions | 20mm x 20mm x 3mm |
| Operating Temperature | -10°C to 50°C |
| Warm-up Time | Approximately 3 Minutes |
| Communication Speed | Up to 1 Mbps (I2C) |
| Package Weight | 2.5 grams |
Anonymous
Apr 07, 2026
Rating: 3/5
Docs need improvement
Sensor works but finding the right library took some time. Hardware is solid though, just wish documentation was clearer.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for Home Automation
Works flawlessly with my ESP32 setup. Readings seem consistent compared to my reference meter. Easy to integrate.
Anonymous
Feb 24, 2026
Rating: 5/5
Reliable for Prototyping
Used this for a preliminary air quality station. Data output is stable and the form factor is very compact.
Anonymous
Feb 18, 2026
Rating: 4/5
Good sensor, slight delay
Accuracy is good but takes a few minutes to stabilize after power on. Once warmed up, data is reliable.
Anonymous
Jan 31, 2026
Rating: 5/5
Excellent Value
Much cheaper than other NDIR sensors and performs well for general monitoring. Great for hobby projects.
Q: Does it require manual calibration?
A: It features automatic baseline calibration, but manual calibration commands are supported if needed.
Q: What is the default I2C address?
A: The default I2C address is typically 0x52, but please check the datasheet for configuration options.
Q: How long does the sensor last?
A: The expected lifespan is over 10 years under normal operating conditions.
Q: Can it detect smoke particles?
A: No, this is specifically for CO2 and TVOC gas detection, not particulate matter or smoke.
Q: Is this compatible with Arduino?
A: Yes, it works with Arduino boards using standard I2C libraries available online.
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