The Humminbird HELIX 12 CHIRP DI GPS shares many similarities with the smaller units, the HELIX 10 DI GPS and HELIX 9 DI GPS. However, it features several improvements over these units, and the most important one is the CHIRP sonar.
So, to begin with, let’s have a look at the sonar capabilities and the transducer supplied with this unit.
The HELIX 12 CHIRP DI GPS comes with the XNT 9 DI T transducer, which features a transom mount and incorporates a temperature sensor. Now, in case you’re