BME280 "Optional Membrane"

[Cdsmith379]

The BME280 datasheet has a diagram with an "Optional Membrane". Is this something that can be supplied by Bosch as an alternate part number or is this membrane strictly a third party solution?

[BSTRobin]

Hi Cdsmith379,

Haven't find the description "Optional Membrane" in BME280 data sheet https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme280-ds002.pdf
Could you send a screenshot to see?

[Cdsmith379]

Hi,

Screenshot attached. This may be an older datasheet.

Thank you.

[BSTRobin]

Hi Cdsmith379,

This is optional. If waterproof application is required, waterproof and breathable membrane shall be pasted.