SCD43
UpcomingHigh CO₂ accuracy with comprehensive building standard compatibility
The SCD43 delivers a best-in-class accuracy specification of +- (30pm + 3% m.v.) as well as compatibility with the most stringent building standards, including ANSI/ASHRAE 62.1-2022 Draft Addendum d, California Title 24, RESET® grade B and WELL Building Standard™ (WELL v2). Furthermore, SCD43 features an extended specified range up to 5'000 ppm and single shot operation mode.
The SCD4x is Sensirion’s second generation series of optical CO2 sensors. The sensor series builds on the photoacoustic NDIR sensing principle and Sensirion’s patented PASens® and CMOSens® technology to offer accuracy at an attractive price and small 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.
Carbon dioxide is a key indicator for indoor air quality (IAQ), as high levels compromise human cognitive performance and well-being. The SCD4x enables smart ventilation regulation to help improve energy efficiency and human comfort. Moreover, indoor air quality monitors and other connected devices based on the SCD4x can help maintain low CO2 concentrations for a healthy, productive environment.
Specification
| CO₂ | |||
|---|---|---|---|
| CO₂ Output Range 0 - 40000 | 0 - 40000 | ppm | |
| Specified CO₂ Measurement Range 400 - 5000 | 400 - 5000 | ppm | |
| Accuracy ±30.0 ppm ±3.0 %m.v. | ±30.0 ppm ±3.0 %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 | |
| Size (LxWxH) 10.1 x 10.1 x 6.5 | 10.1 x 10.1 x 6.5 | mm | |
| Packaging size 600 | 600 | pcs (T&R) |
| Temperature | |||
|---|---|---|---|
| Typ. temperature accuracy 0.8 | 0.8 | °C | |
| Response time (τ63%) 120 | 120 | s |
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