SCD40 Series Carbon Dioxide Sensor
Ask for price
Sensirion SCD40: I²C CO₂ sensor based on photoacoustic NDIR with integrated humidity / temperature measurement in a 10.1 × 10.1 mm SMD housing.
SCD40 is one of the smallest true CO₂ sensors in its class, working on Sensirion’s photoacoustic NDIR (PASens®) principle. Its integrated humidity and temperature sensor provides signal compensation and additional humidity and temperature outputs. Its SMD design and tape and reel packaging make it suitable for automated assembly in high-volume production. The SCD41 version is also available for applications that need a wider range and a single-shot mode.
Key features
- True CO₂ measurement with photoacoustic NDIR
- Specified range: 400–2,000 ppm, ±(50 ppm + 5% of reading)
- Integrated humidity and temperature sensor, additional RH/T output
- Wide supply range: 2.4–5.5 V
- Compact 10.1 × 10.1 × 6.5 mm SMD housing, I²C interface
Technical specifications
| Measurement | CO₂ (photoacoustic NDIR), humidity and temperature |
|---|---|
| CO₂ output range | 0–40,000 ppm |
| Specified measurement range | 400–2,000 ppm |
| Accuracy | ±(50 ppm + 5% of reading) |
| Response time (τ63%) | 60 s |
| Supply voltage | 2.4–5.5 V |
| Average current | 15 mA |
| Operating temperature | -10 … +60 °C |
| Interface | I²C |
| Dimensions | 10.1 × 10.1 × 6.5 mm (SMD) |
Applications
- Indoor air quality monitors
- Demand-controlled ventilation and HVAC
- Smart home, thermostats and IoT devices
- Greenhouse and agricultural applications
For detailed technical information: Manufacturer datasheet and documents
Fark Tedarik supplies the SCD40 with an invoice in your company’s name. For bulk or project quantities, please request a quote.
Product safety information
| Manufacturer | Sensirion AG |
|---|---|
| Postal address | Laubisrütistrasse 50 8712 Stäfa Switzerland |
| Contact | info@sensirion.com sensirion.com +41 44 306 40 00 |
| Product identification | SCD40 Series Carbon Dioxide Sensor Model: SCD40 |
| Safety information |
|
| Manufacturer documentation | Datasheet and documents on the manufacturer's website |
Related products
Shipping is calculated in the cart • In-stock items ship within 1–3 business days
incl. VAT · €34,90 + VAT5% off when you buy 10 pcs or more
Shipping is calculated in the cart • In-stock items ship within 1–3 business days
incl. VAT · €43,00 + VAT