| Brand | Screek |
|---|---|
| Type | CO2 Sensor |
| Country of Origin | China |
Check the listing for details. CO2 Sensor SCO2-1 For Home Assistant By Screek (SCD40, ESPHome). Condition: New, Made in China. Listed at 34.99 USD. Based on SCD40 chip from Sensirion, Switzerland. Our understanding of CO2 is that it can build up in an enclosed space, and the ideal value is 1000 ppm or less, and when it gets higher you feel dull and dizzy.