Hi,
Thanks for your inquiry.
The laser marking "OTB-KL" is not the correct marking for BMP280. It should be "xxx-KS" or "xxx-KM" according to the latest BMP280 datasheet. Please refer to the topic at https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/BMP280-measures-with-an-10hPa-offset/td-p/65612 for more information.
Thanks.
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