BME688 - Lower and Higher detection limit for VOC in ppm unit

[salehnajafi70]

Hi.
I am trying to use a BME688 sensor to detect the concentration of VOC, but I could not find the lower and higher detection limit of VOC in ppm unit that can be measured by this sensor, and it is highly important for us.

It would be my pleasure if you could provide me with some information in this regard.

Bests,

Saleh

[BSTRobin]

Hi salehnajafi70,

Thank for your feeback. We will check and give you feedback.

[BSTRobin · Accepted solution]

Hi salehnajafi70,

The maximum detection concentration of toluene is 50ppm, and the sensor cannot measure the gas concentration.
We have no official data to show which VOC is more sensitive.

[salehnajafi70]

Hi,
Thank you for the response.

If the maximum detection concentration of toluene is 50ppm, why we could not see any changes when we exposed the sensor to the 20ppm toluene?

thank you for your time and consideration.