Fisher 1280-X Aquanaut — quick verdict
The Fisher 1280-X Aquanaut is a premium-tier VLF metal detector from Fisher, aimed at underwater, beach detecting. Standout: Turn-on-and-go operation: automatically tunes to changing conditions, no manual ground balance needed.
Overview
The Fisher 1280-X Aquanaut is a premium-tier VLF metal detector from Fisher, aimed at underwater, beach detecting. It runs at 2.4 kHz. Weighing 5.8 lbs (2.6 kg) with 8" coil; 6.3 lbs (2.9 kg) with 10" coil, it sits on the lighter end of its class. Below: every spec verified against the manufacturer's own pages, with sources.
Full Specifications
| Brand | Fisher |
| Technology | VLF |
| Frequencies | 2.4 kHz |
| Weight | 5.8 lbs (2.6 kg) with 8" coil; 6.3 lbs (2.9 kg) with 10" coil |
| Waterproof | Submersible to 250 feet (76 m) |
| Coil | 8" (20 cm) or 10" (25 cm) concentric round open submersible searchcoil |
| Best for | Underwater, beach |
| Price tier | Premium |
Verified against manufacturer pages, October 2026. Fields marked "not published" are absent from official sources — we never fill them from retailers.
How It Fits the Lineup
The Fisher 1280-X Aquanaut sits in Fisher's lineup alongside Fisher F44, Fisher F75, Fisher Gold Bug 2, Fisher F22. It uses VLF (Very Low Frequency) — a single transmitted frequency, typically 3–81 kHz. VLF machines discriminate well — telling iron from silver by phase response — and are light and affordable. Their weakness is mineralized ground and wet salt sand, which read as false targets. Compare it against its intended competition in our guides to the best beach metal detectors, best underwater metal detectors, and see how Fisher's range stacks up on the Fisher brand page.
Key Features
- Turn-on-and-go operation: automatically tunes to changing conditions, no manual ground balance needed
- Audio and visual target response with battery test mode
- Removable control housing with belt-mount; submersible headphones included; 8 AA batteries, up to 75 hours
Sources
Frequently Asked Questions
What is the Fisher 1280-X Aquanaut best for?
The Fisher 1280-X Aquanaut is best for underwater, beach detecting. Key strengths: turn-on-and-go operation: automatically tunes to changing conditions, no manual ground balance needed.
What frequency does the Fisher 1280-X Aquanaut use?
2.4 kHz
Is the Fisher 1280-X Aquanaut waterproof?
Submersible to 250 feet (76 m)
How much does the Fisher 1280-X Aquanaut weigh?
5.8 lbs (2.6 kg) with 8" coil; 6.3 lbs (2.9 kg) with 10" coil
Where can I buy the Fisher 1280-X Aquanaut?
Through authorized dealers and on Amazon — check current availability via the link below. DetectorLab may earn a commission (see disclosure).
Honest Limitations
The Fisher 1280-X Aquanaut is a strong pick for underwater, beach detecting, but no machine is universal. Check the waterproof line before any water use, confirm the weight against your stamina, and remember that ground conditions affect real-world performance more than any spec number.