# CO₂ Humidity and Temperature Sensor - SCD30

**Type:** Product page · **SKU:** SPX-14751 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/co-humidity-and-temperature-sensor-scd30.html ([markdown](https://core-electronics.com.au/co-humidity-and-temperature-sensor-scd30.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

The SCD30 from Sensirion is a high-quality [NDIR](https://en.wikipedia.org/wiki/Nondispersive_infrared_sensor) based CO₂ sensor capable of detecting 400 to 10000ppm with an accuracy of ±(30ppm+3%). In order to improve accuracy the SCD30 has temperature and humidity sensing built-in, as well as commands to set the current altitude.

SparkFun has written an Arduino library to make reading the CO₂, humidity, and temperature very easy. It can be downloaded through the Arduino Library manager: search for ‘SparkFun SCD30’ or it can be downloaded [here](https://github.com/sparkfun/SparkFun_SCD30_Arduino_Library). SparkFun recommends using a [Qwiic Breadboard Cable](https://core-electronics.com.au/search/?q=14425) to connect the SCD30 to a Qwiic compatible board. The Ye*LL*ow wire goes in the SC*L* pin. The SCD30 also supports a serial interface but SparkFun hasn’t worked with it.

The CO₂ sensor works very well and for additional accuracy, the SCD30 accepts ambient pressure readings. We recommend using the SCD30 in conjunction with the [Qwiic Pressure Sensor - MS5637](https://core-electronics.com.au/search/?q=14688) or the [Qwiic Environmental Sensor - BME680](https://core-electronics.com.au/search/?q=14570) to obtain the current barometric pressure.

**Note:** The SCD30 has an automatic self-calibration routine. Sensirion recommends 7 days of continuous readings with at least 1 hour a day of ‘fresh air’ for self-calibration to complete.

SparkFun does not plan to regularly stock all SparkX products so get them while they’re hot!

 **Experimental Product:** [SparkX](https://www.sparkfun.com/sparkx) products are rapidly produced to bring you the most cutting-edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. ### **Features**

- 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.
- Energy consumption: 120 mJ @ 1 measurement
- Fully calibrated and linearized
- Digital interface UART or I2C
 
### **Documents**

- [SCD30 Sales Sheet](https://cdn.sparkfun.com/assets/1/a/7/9/9/Sensirion_CO2_Sensors_SCD30_Preliminary-Datasheet.pdf)
- Datasheet (SparkFun's waiting for permission from Sensirion to post)
- [SparkFun SCD30 Arduino Library repo](https://github.com/sparkfun/SparkFun_SCD30_Arduino_Library) (can also be downloaded through the library manager)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/4/14751-co____humidity_and_temperature_sensor_-_scd30-01.jpg)