White's Electronics just dropped the GMX Sport, and it's already turning heads in the gold prospecting community. This isn't just another VLF detector — it's a fully waterproof machine that can handle everything from desert washes to mountain streams without missing a beat.
The GMX Sport runs at 48kHz, which puts it right in the sweet spot for detecting small gold nuggets. At 3 lbs 12 oz, it won't wear you down during long prospecting sessions, and the IP68 rating means you can submerge it up to 10 feet deep when working water crossings or testing that promising gravel bar.
What Makes the GMX Sport Different
The standout feature here is the new XGB ground balance system. If you've struggled with heavily mineralized ground using other VLF detectors, this could be a game-changer. Traditional ground balance systems often struggle in areas with lots of hot rocks and mineral deposits — exactly where gold likes to hide.
White's also included TracLock ground tracking, which automatically adjusts as you move between different soil types. You can even set a ground balance offset in both modes, giving you fine control over how the detector responds to your specific hunting conditions.
The Ground Scan mode is particularly clever if you're into drywashing or sluicing. Instead of just finding individual targets, it shows you areas where valuable paystreaks might be concentrated in streambeds and washes.
Target Identification and Audio
The large backlit display shows everything you need at a glance. The Target Graph breaks targets into three ranges: Ferrous, Gold, and High Conductor, with Target ID numbers from 0-99. This makes it easy to distinguish between trash and potential keepers, even for beginners.
Audio options include adjustable volume with two boost levels, adjustable threshold, and a Tone ID mode. The vSAT feature helps reduce false signals from electrical interference — handy when you're detecting near power lines or cell towers.
Performance Features
With 10 sensitivity levels, you can dial in the detector for current conditions. High sensitivity works great in clean ground, while lower settings help in trashy areas or around electromagnetic interference.
The discrimination system is adjustable, and the non-motion pinpoint mode makes target recovery much easier than motion-only systems. You won't lose targets when you slow down to pinpoint their exact location.
Technical Specifications
| Detector Type | Gold Nugget/Prospecting |
| Frequency | 48kHz |
| Weight | 4.0 lbs with batteries |
| Length | 45 inches to 55 inches, Assembled |
| Batteries | 8aa Included |
| Battery Life | 20-40 hrs |
| Search Coil | 6" Concentric included |
| IP Rating | IP 68 waterproof to 10 feet |
| Audio | Speaker or 1/4" Headphone |
| Ground Balance | XGB and TracLock |
| Warranty | 2 Year Transferrable |
| Unique Features | Ground Scan, All-Metal Disc. |
| Optional Coils | 4" x 6" GMX or 4" x 6" 24K |
Battery Life and Runtime
The 8 AA battery setup gives you 20-40 hours of runtime depending on your settings. Higher sensitivity and backlight use drain batteries faster, but even with heavy use you should get several full days of prospecting before needing fresh batteries.
Waterproof Design Benefits
The IP68 rating isn't just about water protection — it also keeps out dust, sand, and debris that can damage electronic components. Whether you're working desert claims or mountain streams, the sealed design handles harsh conditions better than most detectors in this class.
Being able to detect underwater opens up areas other prospectors might skip. Stream crossings, seasonal ponds, and flooded washes often hold gold that's been concentrated by water action.
Who Should Consider the GMX Sport
This detector works well for both newcomers and experienced prospectors. The turn-on-and-go simplicity means beginners can start finding targets immediately, while the advanced ground balance and customization options give experienced users the control they want.
If you're primarily hunting for gold nuggets in mineralized ground, especially areas with water access, the GMX Sport's feature set is hard to beat. The 48kHz frequency excels at picking up small gold that lower frequency machines might miss.
White's Electronics is including a FREE 4"x6" DD Search Coil with GMX Sport purchases for a limited time. The smaller coil gives better target separation in trashy areas and improved sensitivity to tiny nuggets.
Having both the 6" concentric and 4"x6" DD coils gives you more versatility right out of the box — the concentric for general prospecting and the DD for working around trash or in tight spaces between rocks.
