<p>The SCD4x is Sensirion’s next generation miniature CO2 sensor. This sensor builds on the photoacoustic NDIR sensing principle and Sensirion’s patented PASens® and CMOSens® technology to offer high accuracy at an unmatched price and smallest form factor. SMD assembly allows cost- and space-effective integration of the sensor combined with maximal freedom of design. On-chip signal compensation is realized with the built-in SHT4x humidity and temperature sensor. Tape and reel packaging make the SCD4x ideal for high-volume applications.</p><p> </p><p>CO2 is a key indicator for indoor air quality (IAQ) as high levels compromise humans’ cognitive performance and well-being. The SCD4x enables smart ventilation systems to regulate ventilation in the most energy-efficient and human-friendly way. Moreover, indoor air quality monitors and other connected devices based on the SCD4x can help maintain low CO2 concentration for a healthy, productive environment.</p>
CO₂ | |||
---|---|---|---|
CO₂ Output Range
0 - 40000
| 0 - 40000 | ppm | |
Specified CO₂ Measurement Range
400 - 2000
| 400 - 2000 | ppm | |
Accuracy
±50.0 ppm ±5.0 %m.v.
| ±50.0 ppm ±5.0 %m.v. | ||
Response time (τ63%)
60
| 60 | s |
Humidity | |||
---|---|---|---|
Typ. relative humidity accuracy
6
| 6 | %RH | |
Operating relative humidity range
0 - 95
| 0 - 95 | %RH | |
Response time (τ63%)
90
| 90 | s | |
Calibration certificate
Factory calibration
| Factory calibration |
Generic | |||
---|---|---|---|
Supply voltage
2.4 - 5.5
| 2.4 - 5.5 | V | |
Average supply current
15
| 15 | mA | |
Max. supply current
205
| 205 | mA | |
Operating temperature range [°C]
-10 - 60
| -10 - 60 | °C | |
Interfaces
I²C
| I²C | ||
Size (LxWxH)
10.1 x 10.1 x 6.5
| 10.1 x 10.1 x 6.5 | mm³ | |
Packaging size
60 and 600
| 60 and 600 | pcs (T&R) |
Temperature | |||
---|---|---|---|
Typ. temperature accuracy
0.8
| 0.8 | °C | |
Response time (τ63%)
120
| 120 | s |
Buy the following products to evaluate this sensor
Name | Description | Series | Category |
---|---|---|---|
SEK-SCD41 | CO₂ evaluation kit SCD4x series | SEK-SCDxx | CO₂ |
SEK-SensorBridge | Connecting bridge with two sensor ports | SEK-SensorBridge |
Sensirion's sensor solutions are used in a wide range of applications and markets. Our reliable environmental and flow sensors improve energy efficiency, increase health and ensure safety and comfort.