This sensor builds on the photo-acoustic sensing principle.
Sensor board is equipped with an I2C interface.
Sensor support is available in HW 3.5+ and SW 1.50+.
When connecting via the I2C interface, select the option with this sensor on the I2C and 1Wire sensors page. As a result, the readings from the sensor will be available in the fields T1, H1, CO2.
|Supply voltage||2.4-5.5V DC (typically 3.3V or 5V)|
|Peak supply current||175mA|
|Length of connecting cable (maximum)||0.5m (I2C)||Measurement range||0-40000ppm (CO2)
0-100% RH (humidity)
-10 to +60 °C (temperature)
|Measurement accuracy||+/- 50ppm + 5% (CO2, in the range of 400-2000ppm)
+/- 6% RH (humidity, in the range of 15 to 35 °C and 20-65% RH)
+/- 9% RH (humidity, in the range of -10 to 60 °C and 0-100% RH)
+/- 0.8 °C (temperature, in the range of 15 to 35 °C)
+/- 1.5 °C (temperature, in the range of -10 to 60 °C)
|Measurement repeatability||+/- 10ppm (CO2)
+/- 0.4% RH (humidity)
+/- 0.1 °C (temperature)
|Response time||60s (CO2)