> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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.

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)