A: The IBS-TH1 has a built-in probe and an external probe, but they cannot display temperature at the same time.
The external probe is used for temperature measurement and the internal probe for humidity measurement.
I am sorry that the picture of the manual has caused you a misunderstanding.
Please note: An IBS-TH1 can only add one environment. If you need to measure the temperature in different places, you need to re-purchase the product.
You can view the data of both probes in the APP export data.