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The XP DEUS II Remote Control 20 Meter Waterproof Cap in red is a pressure-balancing component designed exclusively for underwater detecting with the DEUS II remote control. This cap maintains internal pressure equilibrium when the remote is submerged, preventing keypad swelling and speaker membrane adhesion that occur when atmospheric pressure differentials build up during deep dives. DEUS II owners who hunt rivers, lakes, or saltwater beaches below the surface need this red cap installed on the remote before entering the water, and the cap must be removed immediately upon returning to land because the pressure-balancing mechanism that protects the remote underwater will cause component malfunction in surface air as temperature and barometric pressure shift throughout the day.
What's Included with the XP DEUS II Remote Control 20 Meter Waterproof Cap
- XP DEUS II Remote Control 20 Meter Waterproof Cap in red
Why DEUS II Divers Reach for the Red 20 Meter Cap
- Pressure balancing prevents keypad swelling during deep underwater hunts: the red cap equalizes internal and external pressure at depths up to 20 meters, eliminating the membrane distortion that makes buttons unresponsive or stuck.
- Speaker protection in submerged environments: the pressure-balancing design stops the loudspeaker membrane from adhering to its housing when external water pressure exceeds internal air pressure during descent.
- Mandatory cap-swap discipline for land detecting: removing the red cap before surface hunts prevents the flexible keypad from swelling or the speaker from sticking as ambient temperature and barometric pressure vary, a maintenance habit that extends remote lifespan.
- Genuine XP engineering for the DEUS II remote control: this cap is the factory-specified component for underwater pressure management, not an aftermarket workaround, ensuring the remote's waterproof integrity remains intact through repeated dive cycles.
- For detectorists running multiple XP metal detectors - authorized US dealer configurations, the red cap is the required accessory when transitioning the DEUS II remote from park hunts to river or ocean detecting.
Pressure Management in Underwater DEUS II Remote Operation
River and Lake Detecting at Depth
When a DEUS II remote descends below the surface without the red 20-meter cap installed, external water pressure rises faster than the sealed internal air pressure can equalize, compressing the flexible keypad membrane inward and pressing the loudspeaker diaphragm against its housing. The red cap incorporates a pressure-balancing mechanism that prevents this compression. The cap remains effective to 20 meters, equivalent to 65 feet, covering the depth range of most recreational underwater detecting. Once the hunt concludes and the remote returns to the surface, the cap must be removed immediately because the balancing mechanism that protects components underwater will cause the keypad to swell and the speaker to malfunction when exposed to surface air temperature swings and barometric pressure changes over the following hours.
Saltwater Beach Surf and Shallow Water Hunts
Saltwater detectorists working the surf zone or wading in tidal flats face pressure challenges during underwater detecting. Wave action and repeated submersion cycles create transient pressure spikes that can distort the keypad, and the red cap eliminates this risk entirely. For extended surf hunts or any session where the remote will be submerged repeatedly, installing the red cap is the safer protocol. The cap's pressure-balancing mechanism handles the rapid depth changes that occur when a wave breaks over the remote or the detectorist dives to retrieve a target from a trough. Understanding the technologies behind modern detectors helps clarify why the DEUS II remote requires pressure management for underwater use.

Specifications
- Compatibility: XP DEUS II Remote Control
- Maximum Depth: 20 meters (65 feet)
- Color: Red
- Function: Pressure balancing for underwater use only
- Land Use: Forbidden (remove cap before surface detecting)
- Warranty: Covered under XP DEUS II accessory warranty
Why Buy from Serious Detecting
Serious Detecting is an authorized XP dealer, which means this red 20-meter waterproof cap ships with full manufacturer warranty coverage and our team has direct access to XP technical support for any pressure-balancing questions that arise during underwater hunts. We stock genuine XP replacement components and metal detector parts & accessories for the DEUS II platform, and every order ships free within the continental United States. Our 30-day return policy covers accessories, and we honor XP's price-match guarantee on all in-stock items, ensuring you pay the same rate as any competing authorized dealer.
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