



M5Stack CO2L Unit with Temperature and Humidity Sensor (SCD41)
The UNIT CO2L is a digital air CO2 concentration detection unit with a single-measurement low-power mode, built-in Sensirion's SCD41 sensor, power buck circuitry, and I2C communication. The unit is suitable for the measurement of ambient conditions with a typical accuracy of ± (40 ppm + 5 % reading) for CO2 measurements with a measuring range of 400 ppm – 5000 ppm.
Features
- CO2 concentration detection
- Temperature and humidity measurement
- Low power consumption (single measurement supported)
- Integrated 5V -> 3.3V LDO
- HY2.0 4P interface
Specifications
| Resources | Parameters |
| Sensor | SCD41 |
| CO2 measurement range | 400 ~ 5000 ppm |
| CO2 sampling accuracy | ±(40 ppm + 5% of reading) |
| Temperature range | -10 - 60 °C |
| Humidity range | 0 - 95 %RH |
| Communication protocol | I2C:0x62 |
| Product Size | 48mm Ă— 24mm Ă— 16mm |
| Package Size | 136mm Ă— 92mm Ă— 13mm |
| Product Weight | 7.4g |
| Package Weight | 12.3g |
Resources
- Product Wiki
- Pin Map
Package Contents
- 1x CO2L Unit with Temperature and Humidity Sensor (SCD41)
- 1x Grove Cable
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The UNIT CO2L is a digital air CO2 concentration detection unit with a single-measurement low-power mode, built-in Sensirion's SCD41 sensor, power buck circuitry, and I2C communication. The unit is suitable for the measurement of ambient conditions with a typical accuracy of ± (40 ppm + 5 % reading) for CO2 measurements with a measuring range of 400 ppm – 5000 ppm.
Features
- CO2 concentration detection
- Temperature and humidity measurement
- Low power consumption (single measurement supported)
- Integrated 5V -> 3.3V LDO
- HY2.0 4P interface
Specifications
| Resources | Parameters |
| Sensor | SCD41 |
| CO2 measurement range | 400 ~ 5000 ppm |
| CO2 sampling accuracy | ±(40 ppm + 5% of reading) |
| Temperature range | -10 - 60 °C |
| Humidity range | 0 - 95 %RH |
| Communication protocol | I2C:0x62 |
| Product Size | 48mm Ă— 24mm Ă— 16mm |
| Package Size | 136mm Ă— 92mm Ă— 13mm |
| Product Weight | 7.4g |
| Package Weight | 12.3g |
Resources
- Product Wiki
- Pin Map
Package Contents
- 1x CO2L Unit with Temperature and Humidity Sensor (SCD41)
- 1x Grove Cable





















