Valeport TideMaster Operating Manual page 22

TideMaster - Operating Manual: MANUAL-1094978189-1 | issue: 1.1
At this point you will be assigned two COM port numbers, the
important one is the outgoing COM port as you will need to select
this port when connecting to the instrument.
Now your TideMaster is successfully paired you will be able to
establish a serial connection using the assigned com port
(Bluetooth baud rate is fixed at 57600).
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