This Piranhamax model comes to replace the 160 Portable. Although the two units are quite similar, there are a few differences between them.
First of all, the Humminbird Piranhamax 165 PT has a better display than the older model, featuring a 240 x 160 pixel resolution, on a 4-inch diagonal screen, 8 level grayscale. This new screen provides a better, clearer image.
On the other hand, the 165 Portable does not have a dual beam sonar. It’s has only single beam sonar capabilities, projecting