For open ground

Zero-latency signal transmission: XP's patented radio protocol sends target data from coil to headphones instantly

These are the sites where targets at depth are reachable with the right coil

The XP Deus II 11-inch FMF coil is a wireless multi-frequency search coil built for the Deus II metal detector

Teknetics Eurotek Pro Metal Detector w/ 11" DD Double-D Coil, Coil Cover, and Tek-Point Pinpointer metal-detectors For open groundTeknetics Eurotek Pro Metal Detector with 11 DD Waterproof Search Coil, Coil Cover, Tek Point Pinpointer, and a Five Year Warranty. The Eurotek Pro features Adjustable Iron Audio, Variable Breakpoint, Variable Iron Discrimination, Superior Iron Separation, Fast Recovery Speed, Iron Identifier LED, 5 Segment Depth Indicator, 3 Tone Audio ID, Ferrous & Non Ferrous ID, Depth Indicator, Motion Discrimination Mode, Discrimination Adjustment, Adjustable