XP Deus X35 9-Inch Round DD Coil for DEUS and ORX

The X35 9-inch coil is compatible with the XP DEUS running version 5 firmware and the XP ORX. It is not compatible with the DEUS II, which uses the FMF coil platform. DEUS owners need to verify they are running firmware version 5 or later for full frequency access and Boost mode functionality. The coil pairs wirelessly with the remote control and headphones, maintaining the cable-free design of the DEUS and ORX systems. If you are unsure about your DEUS firmware version, our metal detecting tips and FAQs page covers XP firmware updates and compatibility checks.

The X35 9-inch coil supports 35 selectable frequencies organized into five base bands: 3.7 to 4.4 kHz, 7.1 to 8.4 kHz, 10.5 to 12.4 kHz, 15.2 to 17.8 kHz, and 23.5 to 27.7 kHz. Each base frequency has seven offset options, allowing you to shift away from electromagnetic interference or noisy ground conditions without leaving your preferred frequency range. The low-frequency band includes a Boost mode that increases transmission power for deeper detection on high-conductivity targets like large silver coins and copper relics. Frequency selection is controlled through the DEUS remote or ORX keypad.

The X35 9-inch coil is waterproof to 6 meters, which is approximately 20 feet. The coil housing, lower pole section, and all electronic components are sealed for full submersion, making it suitable for wading, surf hunting, and shallow diving. The wireless electronics inside the coil are protected from saltwater and freshwater exposure. The coil cover is included and provides additional abrasion protection during underwater hunts. Rinse the coil and lower pole with fresh water after saltwater use to prevent corrosion on the mounting hardware.

Boost mode is a high-power transmission option available on the low-frequency band of the X35 coil, specifically on frequencies from 3.7 to 4.4 kHz. When activated, Boost mode significantly increases the coil's transmission power, extending detection depth on highly conductive targets such as large silver coins, copper artifacts, and cache finds. The mode is most effective in low-mineralization soil where ground conditions allow deeper penetration. Battery life is reduced to approximately 6 hours in Boost mode compared to standard operation. Boost mode is controlled through the DEUS remote or ORX keypad and is best used selectively during hunts targeting deep high-conductivity targets.

The 9-inch X35 coil has a smaller footprint than the 11-inch model, providing tighter target separation in iron-contaminated sites and better maneuverability in tight-access areas like dense brush or between foundation stones. The 11-inch coil covers more ground per swing and reaches deeper on large targets in clean soil, making it a better choice for open fields and low-trash sites. Both coils support the same 35 frequencies and Boost mode, and both are waterproof to 6 meters. Detectorists working trashy parks, cellar holes, and historical sites with high iron density typically prefer the 9-inch for its ability to isolate targets in dense debris. If you hunt a mix of clean and trashy sites, explore the full range of round metal detector search coils to find the best balance for your conditions.

The X35 9-inch coil package includes the coil itself, a protective coil cover, a lower pole section, and a hardware kit for mounting the coil to the DEUS or ORX shaft. The coil cover is pre-fitted and protects the coil housing from abrasion during ground contact. The lower pole section connects the coil to the middle shaft section of the detector. The hardware kit includes the necessary screws and washers for secure mounting. The X35 coil pairs wirelessly with the DEUS or ORX system, eliminating cable connections and maintaining the detector's modular design. The coil's wireless electronics communicate with the remote control and headphones, allowing you to adjust frequencies, sensitivity, and discrimination settings on the fly.

The X35 9-inch coil is waterproof to 6 meters and is fully functional in saltwater environments, including surf hunting and wading in saltwater beaches. The coil's frequency range and DD configuration provide stable operation in wet sand and saltwater, and the wireless design eliminates cable corrosion concerns. Run mid-band or high-band frequencies for better saltwater stability, and use the frequency offset options to reduce ground noise in highly mineralized black sand. Rinse the coil, lower pole, and mounting hardware with fresh water after each saltwater hunt to prevent salt buildup and corrosion. Our team runs the X35 coils on East Coast beaches and finds the 9-inch size effective for working the wet sand line and shallow water zones.

The X35 9-inch coil is not compatible with the DEUS II. The DEUS II uses a different coil platform and communication protocol than the X35 system. The X35 coil is designed for the original DEUS (version 5 firmware or later) and the ORX. DEUS II owners looking for a compact coil option should consider the coils designed specifically for that detector. If you own a DEUS or ORX and are looking for additional coil options, browse our full selection of metal detector search coils to compare sizes and configurations. The X35 coil's 35-frequency range and Boost mode make it a versatile upgrade for DEUS and ORX users hunting a variety of soil conditions and target types.