Question: how to tell the difference between lowrance gen 1 and gen 2?
Answer: Lowrance HDS Gen 1 and Gen 2. The easiest way to tell them apart is by the colour of the text on the memorycardreaders door. Gen 1 has blue text, while Gen 2 has white text. These are Gen 2 - and have white letters on the memorycarddoors. In most cases also the Lowrance-logo above the screen itself is different.