Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Sensor Technology | Electrochemical & NDIR |
| Detected Gases | VOC, CO₂, Formaldehyde (HCHO) |
| Communication Interface | UART / I2C |
| Input Voltage | 5V DC |
| Operating Temperature | -10°C to 50°C |
| CO₂ Range | 400 - 5000 ppm |
| VOC Range | 0 - 5000 ppb |
| Formaldehyde Range | 0 - 5 mg/m³ |
| Module Dimensions | 35mm x 35mm x 12mm |
| Pre-heat Time | 30 Seconds |
Anonymous
Apr 03, 2026
Rating: 5/5
Perfect for smart home integration
Love being able to monitor formaldehyde levels. Gives peace of mind after painting rooms.
Anonymous
Feb 23, 2026
Rating: 5/5
Solid industrial component
Using this for a prototype HVAC system. The UART output is stable and documentation was clear.
Anonymous
Feb 08, 2026
Rating: 4/5
Reliable data output
Minor lag in VOC response but overall very satisfied with the build quality and pin layout.
Anonymous
Jan 26, 2026
Rating: 5/5
Great for DIY Air Quality Monitors
Integrated easily with my ESP32 project. Readings seem consistent compared to my standalone meter.
Anonymous
Jan 16, 2026
Rating: 4/5
Good accuracy, needs calibration
Works well after letting it run for a few hours. CO2 readings match expectations. VOC sensitivity is high.
Q: Can it detect carbon monoxide?
A: No, this module is specific to VOC, CO₂, and Formaldehyde only.
Q: What is the power consumption?
A: Average consumption is around 100mA during active sensing.
Q: Is the casing included?
A: Yes, the module comes with a protective plastic housing as shown in images.
Q: Does it require regular calibration?
A: We recommend automatic baseline calibration every 7 days for optimal CO2 accuracy.
Q: Is this compatible with Arduino?
A: Yes, it works with Arduino Uno and Mega via UART or I2C libraries.
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