If fishing is in your DNA, there's no such thing as "too early" or "too far." High expectations go with the territory. The HELIX 5 Series answers the call with an uncompromising, 5" widescreen display. This HELIX 5 SONAR G2 PT model features DualBeam PLUS and SwitchFire.
Key Features:
FAQs:
No
I did not purchase the Helix 5 with GPS. However, if the unit is purchased with GPS, it will show the speed.
Go to this link. It gives you a complete explanation. https://www.westmarine.com/WestAdvisor/Understanding-CHIRP-Scanning-Sonar
attach a battery tender to your battery and you should be OK