Sensirion SCD30 Sensor Module
CO2, humidity, and temperature sensor
- NDIR CO2 sensor technology
- Integrated temperature and humidity sensor
- Best performance-to-price ratio
- Dual-channel detection for superior stability
- Small form factor: 35 mm x 23 mm x 7 mm
- Measurement range: 400 ppm – 10.000 ppm
- Accuracy: ±(30 ppm + 3%)
- Current consumption: 19 mA @ 1 meas. per 2 s.
- Fully calibrated and linearized
- Digital interface UART or I2C
Product Description
CMOSens® Technology for IR detection enables carbon dioxide measurements of the highest accuracy at a competitive price.
Along with the NDIR measurement technology for detecting CO2 comes a best-in-class Sensirion humidity and temperature sensor integrated on the very same sensor module. Ambient humidity and temperature can be measured by Sensirion’s algorithm expertise through modelling and compensating of external heat sources without the need of any additional components. The very small module height allows easy integration into different applications.
Carbon Dioxide is a key indicator for indoor air quality. Thanks to new energy standards and better insulation, houses have become increasingly energy-efficient, but the air quality can deteriorate rapidly. Active ventilation is needed to maintain a comfortable and healthy indoor environment and improve the well-being and productivity of the inhabitants. Sensirion sensor solutions offer an accurate and stable monitoring of CO2 in the air, as well as temperature and humidity. This enables our customers to develop new solutions that increase energy efficiency and simultaneously support the well-being of everyone.
CO2 Sensor Specifications
| Parameter | Conditions | Value |
|---|---|---|
| CO2 measurement range | I2C, UART PWM |
0 – 40’000 ppm 0 – 5’000 ppm |
| Accuracy | 400 ppm – 10’000 ppm | ± (30 ppm + 3%MV) |
| Repeatability | 400 ppm – 10’000 ppm | ± 10 ppm |
| Temperature stability | T = 0 … 50°C | ± 2.5 ppm / °C |
| Response time | τ63% | 20 s |
| Accuracy drift over lifetime | 400 ppm – 10’000 ppm ASC field-calibration algorithm activated and SCD30 in environment allowing for ASC, or FRC field-calibration algorithm applied. |
± 50 ppm |
Humidity Sensor Specifications
| Parameter | Conditions | Value |
|---|---|---|
| Humidity measurement range | - | 0 %RH – 100 %RH |
| Accuracy | 25°C, 0 – 100 %RH | ± 3 %RH |
| Repeatability | - | ± 0.1 %RH |
| Response time | τ63% | 8 s |
| Accuracy drift | - | < 0.25 %RH / year |
Temperature Sensor Specifications
| Parameter | Conditions | Value |
|---|---|---|
| Temperature measurement range | - | - 40°C – 70°C |
| Accuracy | 0 – 50°C | ± (0.4°C + 0.023 × (T [°C] – 25°C)) |
| Repeatability | - | ± 0.1°C |
| Response time | τ63% | >10 s |
| Accuracy drift | - | < 0.03 °C / year |
