Can one state what product type is just by looking at its SL ( Serial Number Low )?
The concatenation of SH + SL forms the 64-bit or MAC address of the device. It is stored in the device's memory as two 32-bit values: the high part, SH, and the low part, SL. The high part is usually the same for all XBee devices (0013A200), as this is the prefix that identifies Digi devices. The low part is different for every device.