When the AD17 was first put into production, it raised the standards of fully automatic, high sensitivity hand held metal detection to a new level. It features a two-position rocker switch. In the back position the rocker switch enables the AD17 to perform as a very effective, general-purpose metal detector with a very high operational speed. However, with the rocker switch in the forward position the AD17 converts to a super high sensitivity unit capable of detecting very small masses of metal that had previously been undetectable, but with the ease of use of a fully automatic unit, with just the flick of a switch.
Requires a single 9V battery for operation, not included in sale but can be purchased separately.