How can I distinguish your devices?
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- By checking the label on the back of the device, you can check the device type such as `ST7 <../ST7.html>`_ 、 `ST5 <../ST5.html>`_ 、 `ST4 <../ST4.html>`_ 、 `ST3 <../ST3.html>`_ 、 `SW2 <../SW2.html>`_