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Humminbird HELIX 5 Sonar G2 PT

HELIX 5 Sonar G2 PT

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DualBeam Plus1,500' NoNo

The Humminbird HELIX 5 Sonar G2 PT is the newer version of the HELIX 5 Sonar PT. It’s a sonar only Humminbird fish finder; it doesn’t support GPS or charts, and it’s not networkable. As opposed to the older model, the G2 unit features an improved interface. Also, this unit includes a transom transducer, not the one with a suction cup. For reference, this is the Humminbird part number 410250-1.

Technical Details & Specifications

  • Display: 5″ diagonal, 800H x 480V pixel resolution, 16-bit color, with LED backlight
  • Sonar: DualBeam Plus
  • Depth Capability: 1,500 feet (457 m)
  • Frequency and Coverage:
    200 kHz / 20°
    83 kHz / 60°
  • Transducer: XNT 9 20 T
  • Power Output: 500 Watts (RMS)
  • Power Input: 10.8-20 VDC
  • GPS: No
  • Maps: No
  • Portable Kit: Included

Sonar features

The HELIX 5 Sonar G2 PT supports two main frequencies, these being 83/200 kHz. However, it only has 2D sonar and cannot be upgraded to Down Imaging or Side Imaging. Its internal sonar is DualBeam Plus, which means it can use the 83 kHz and 200 kHz modes simultaneously, and you can view both returns in split-screen.

There are several standard sonar features available with this unit. To begin with, it has the Selective Fish ID+ feature, which is a sonar mode that replaces the standard fish arches with fish symbols, also showing the depth of each fish next to it. This feature is not 100% reliable, though, as some of the targets which have been assigned fish symbols may not be fish. But still, this sonar feature can be at least helpful for the depth of each detected individual target.

All Humminbird fish finders that have DualBeam Plus sonar also have the SwitchFire feature, and the HELIX 5 Sonar G2 PT is no exception. SwitchFire is essentially a quick noise filter. It has two distinct modes, Max. and Clear. When Clear Mode is selected, the unit filters out most of the noise, focusing only on the bigger targets. Conversely, Max Mode brings on the unit’s display all the information detected by the transducer so you can make sure you won’t miss any target.

In terms of alarms, there are several available. Among them, we can count Fish ID Alarm, Depth, Alarm, Temperature Alarm, and Battery Alarm. The Fish ID Alarm is only usable when the Selective Fish ID+ feature is enabled. You can select various fish sizes and set the alarm to notify you if it detects any targets of that size. If you’re searching for a certain depth, or if you want to navigate more safely, you can set up a Depth Alarm and the unit will notify you if you reach such depth. Temperature Alarm and Battery Alarm pretty much speak for themselves.

Just as the Humminbird ICE HELIX 5 CHIRP GPS G2 that we’ve previously reviewed, this one has a Circular Flasher view. This being said, you can turn your unit into an ice fish finder. However, you will either need an ice transducer for it, or make some improvisation on the included transducer. There’s also a Vertical Flasher function (RTS) that shows the information caught by the most recent sonar pulse.

Other sonar features include Structure ID, WhiteLine, Bottom View, and more. The unit does not have Sonar Recording or a Temperature Graph function. It does show the temperature detected by the transducer, though.


The HELIX 5 Sonar G2 PT includes the XNT 9 20 T transducer which has a built-in temperature sensor, 20′ (6m) of cable, and

a transom mount. However, it does not have a speed sensor. It can operate at 83/200 kHz.

Since it’s a 2D transducer, it uses conical beams. Their coverage is approx. 60° @ 83 kHz, and 20° @ 200 kHz. Its maximum depth capability is 1,500 ft (457 m), in freshwater, when using the 83 kHz beam.

The XNT 9 20 T transducer should be able to maintain a steady bottom reading at speeds over 20 MPH. However, the recommended speed for a maximum of detected targets is between 1-6 MPH.

Control unit features & portable kit

The included HELIX 5 Sonar G2 unit has a 5″ diagonal display. It’s 16-bit color, with LED backlight and a pretty decent pixel resolution for a small unit, of 800H x 480V. It’s also IPX waterproof, which means it can support incidental water exposure.

As opposed to the older generation HELIX 5 unit, this one has an improved interface. It has a split-view feature if necessary, and can also display speed if connected to a speed sensor.

The unit is not networkable. It doesn’t have Ethernet, NMEA ports, and also doesn’t have a microSD card reader.

Since it’s a “PT” unit, the carrying case with a plastic Gimbal mount is included. The box also includes a 12V 7 AMP battery and a charger for it. The battery should last for at least 16 hours if fully charged.

The Pros

  • DualBeam Plus sonar, capable of 83/200 kHz;
  • The XNT 9 20 T transducer is included;
  • Temperature sensor incorporated in the transducer;
  • 1,500 ft. depth capability;
  • Various functions included, such as Fish ID, Bottom View, Fish Alarm, Depth Alarm etc;
  • IPX7 waterproof;
  • Color display;
  • Portable case included;
  • 12V 7 AMP battery included;
  • Charger for battery included;
  • Fairly easy to install;
  • Affordable.

The Cons

  • A unit cover is not included;
  • Does not support GPS or charts.


The Humminbird HELIX 5 Sonar G2 PT is a sonar-only portable fish finder (no GPS or charts). It has DualBeam Plus sonar, comes with a transducer, carrying case, battery and charger. It offers a wide array of standard sonar features, and can also be used for ice fishing, with a little bit of improvisation. In all, it’s an excellent fish finder for the price.

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