Minelab 11in Equinox EQX 11 Double-D Smart Coil - The waterproof 11-inch round Double-D coil provides good all-round performance for general detecting. It provides a good balance between sensitivity, weight, and ground coverage. The EQX 11 coil weighs 510g with the included protective skidplate, bringing total weight of the EQUINOX detector to 1.34kg with the EQX 11 attached.