AVAILABLE ONLY WITH DEUS V4 UPDATE ! This extremely sensitive coil operates on a wide range of 21 frequencies, ranging from 13 to 81kHz depending on coil choice. Search coil 3 base frequencies:     24 x 13cm Elliptical DD coil: 13 to 15.7kHz, 26 to 31kHz, 68 to 81kHz the coil has a further 7 higher or lower sub frequencies to choose from, allowing a much wider adjustment range. (Previous Deus has 3 sub frequencies) The lower frequencies are intended for general use, they provide good sensitivity to a wide range of targets, the higher frequencies will take the Deus to another level… A level never reached with such versatility, accuracy and stability. You will instantly notice the enhanced sensitivity and the ability to find small targets that have previously been difficult or impossible to locate when searching mineralized ground with competing devices. Apart from the ability to detect through mineralized soil, the HF coils will enhance the signature from weak – low conductive targets or even highly conductive targets, that due to their shape or construction (thin or wired) are beyond the reach of conventional detectors, for example: open rings such as earrings or fine bracelets, wire framed artifacts, gold nuggets, intricate fibula’s, small coins, thin coins, etc. Finally, this  HF coil only weigh 330g and is equipped with the latest higher capacity lithium battery (850mA). The new battery is situated in the lower stem, this is a bonus especially if you are working in a remote area far from a power source Battery life : 20h at 15kHz – 27h at 30khz – 28h at 80 kHz Waterproof: 6 m / 20 ft.