XP DEUS II HF2 Coil Guide: Frequencies, Gold, Beach Use & Setup

Updated November 12, 2026

The XP DEUS II HF2 elliptical search coil gives DEUS II users a specialist option for hunting small gold, fine jewelry, thin coins and targets hiding among iron and trash. It combines a narrow 9.5-by-5-inch footprint with unusually high selectable operating frequencies. It's a practical accessory for the right conditions—not a guarantee that every target will be detected deeper.

At Treasure Coast Metal Detectors, we recommend matching your coil to the targets and terrain you actually hunt. This guide covers the HF2's verified specifications, what it can and cannot do, how to set it up, and the critical distinction between ordinary wireless operation and underwater antenna use.

Looking for the coil? Shop the XP HF2 coil for the DEUS II.

XP DEUS II HF2 coil specifications

Model	DELLFMFHP — XP HF2 elliptical search coil
Compatible detector	XP DEUS II, with compatible software
Size	24 × 13 cm (about 9.5 × 5 inches)
Fast Multi-Frequency	9–90 kHz, with ranges of 9–27, 17–53, and 17–90 kHz
Mono-frequency	9–120 kHz, with selectable frequencies and shifts
Coil connection	Wireless; underwater aerial antenna required for substantially submerged use
Weight	Approximately 350 g
Waterproof depth	Coil rated to 20 m (about 66 ft)
Battery life	Approximately 10 hours, depending on settings

Specifications are from XP Metal Detectors' HF2 product information. Runtime, coil response and effective depth vary with settings and conditions.

Who should consider an HF2?

Small-gold and fine-jewelry hunters. The HF2's upper frequency ranges may improve sensitivity to some very small or low-conductivity targets, such as tiny nuggets, thin rings and fine jewelry. Even with a high-frequency coil, individual links in a fine gold chain can produce weak or intermittent signals; no coil guarantees that every chain will be detected.

Detectorists working tight or trashy sites. The slim elliptical search head fits between roots, rocks, and closely spaced obstacles. Its relatively small detection footprint can help isolate nearby targets. The DEUS II's reactivity, discrimination and audio settings still matter greatly for separation.

DEUS II owners who want a second coil for specialized hunts. If most of your hunts involve general coins and large open areas, a standard-size FMF coil may remain more efficient for ground coverage. Consider the HF2 when small targets or maneuverability matter more than sweeping the largest area.

HF2 versus a standard DEUS II FMF coil

The stock-size DEUS II FMF coils are versatile general-purpose tools. The HF2 is a specialist, not a universal replacement. A larger coil may cover more ground and can do better on some deeper or larger targets. The HF2's narrow footprint is helpful in cluttered locations, and its higher frequency options are particularly relevant when tiny targets are the goal.

Important distinction: higher frequency alone does not automatically provide greater depth or better separation. Search-head size and geometry, target conductivity and size, mineralization, salt, selected program, and recovery settings all contribute to the result.

Compatibility and software: check before you buy

The HF2 is made for the XP DEUS II. It is not enough for a search coil merely to fit the lower shaft. The detector must support the coil electronically.

XP introduced HF2 compatibility with DEUS II software version 3.0. Before using the coil, check XP's current updater guidance for the remote and any wireless headphones you use. Keep compatible components on the required matching versions; don't install an arbitrary update without checking your headset model. See XP's DEUS II version 3.0 announcement and the version 4.1 compatibility notes.

How to install and pair the XP HF2

1. Power down your DEUS II. Confirm the new coil is the HF2 model DELLFMFHP and that the detector software supports it.
2. Mount the coil. Use the supplied lower stem and mounting hardware, or follow XP's installation instructions if fitting it to a compatible stem. Tighten the coil bolt only enough to maintain the desired angle.
3. Check battery charge. Charge the removable HF2 coil battery as directed by XP.
4. Select or pair the coil. Use the DEUS II coil selection/pairing process described in your manual. Verify that the remote recognizes the HF2 and offers its relevant frequency settings.
5. Test with a known target. Confirm consistent audio and identification responses before starting your hunt.

For land detecting, the HF2 does not need a conventional signal cable wrapped around the shaft. It communicates wirelessly with the DEUS II system. An underwater aerial antenna is a different accessory, explained below.

Using the HF2 underwater: the aerial antenna matters

The HF2 search coil is waterproof to 20 meters, but its wireless radio signal does not travel effectively through significant water depth. When the coil is substantially submerged, XP specifies an underwater aerial antenna (a passive waveguide) that runs from the coil up along the shaft toward the remote or supported headset. The antenna helps carry the radio link through the air rather than relying on a direct signal through water.

This is why experienced DEUS II water hunters may have what looks like a cable along the shaft. It is an aerial antenna, not a conventional wired search-coil cable. XP says it generally isn't needed when the coil is submerged by only a few centimeters.

Follow the correct attachment steps in the official XP DEUS II manual (Diving & Sealing section). Pay particular attention to the remote-control sealing cap for your intended depth, and use the appropriate underwater audio equipment. For HF2 saltwater diving, XP instructs users to protect the removable battery connector with the specified silicone grease. After saltwater use, rinse and care for the equipment as XP directs.

Practical DEUS II HF2 setup tips

Start with a suitable DEUS II program. Choose a program appropriate for your terrain and targets, then test the HF2's available frequency range. The highest frequency isn't automatically the best choice for every location.

Balance and stability first. Follow the detector's recommended ground-balance method. In mineralized ground, decrease sensitivity if the machine becomes unstable; check reactivity and other settings for dense iron or trash. Take care when interpreting target IDs: in difficult ground they can become less reliable.

Keep the sweep controlled. Maintain consistent coil height and overlap. Match your sweep speed to the selected search mode and reactivity setting; neither extreme speed nor an excessively slow sweep is universally optimal.

Wet salt is a special case. Conductive seawater can create unwanted signals, particularly in some high-frequency configurations. Use a suitable DEUS II beach program and tune for stability rather than assuming that maximum frequency will find the most jewelry. When detecting submerged, install the aerial antenna according to XP's instructions.

Frequently asked questions

Will the HF2 detect deeper than the standard DEUS II coil?

Not necessarily. It may improve the response to small, low-conductivity targets in suitable conditions, but deeper coins and larger items can favor a different coil. Depth depends on target size and composition, coil size, ground, and search settings.

Can the HF2 find thin gold chains?

It may detect some very small gold targets more effectively than lower-frequency arrangements, but fine chains are difficult for all metal detectors. Results depend on the links, clasp, orientation, depth, and conditions.

Is the HF2 compatible with my DEUS II?

Yes, provided your DEUS II is running compatible software. XP introduced HF2 support in software version 3.0; check its current updater instructions and your headset compatibility before installing updates.

Do I need to run a cable up the shaft?

No conventional signal cable is required for land use. For substantially submerged detecting, XP's separate aerial antenna runs from the coil along the shaft to maintain wireless communication.

Is the HF2 a good coil for wet-sand or shallow-water hunting?

It can be used in those environments, but wet salt and mineralization may limit usable high-frequency settings. Optimize the DEUS II beach program for stable performance. If the coil is substantially submerged, follow XP's underwater antenna instructions.

Is the HF2 worth adding to your DEUS II?

If you already own the XP DEUS II and want to specialize in small gold, fine jewelry, or closely spaced targets, the HF2 is a compelling option. If you mainly want maximum coverage for broad coin and relic searches, keep a standard-size FMF coil in your kit as well. Choose according to the hunt rather than treating any one coil as perfect for every job.

View the XP DEUS II HF2 Coil

Questions about the HF2 or your particular detecting conditions? Contact Treasure Coast Metal Detectors before ordering so you can choose a compatible setup.