Check the listing for details. S2 INTERFACE ATTACHMENT FOR ELECTROSCOPE GOLD LONG RANGE LOCATOR METAL DETECTOR. Condition: New. Listed at 100.00 USD. The Interface S 2 is an accessory and is used to enhance the performance of Electroscopes Model 20, Model 301 Regular & Digital, and theRegulator Regular & Digital.Interface S2 attachment enhancer for Electroscopes Model 20, 301 regular & digital, Regulator regular & digital.Does not work alone. This is an add on accessory for enhancing the performance of Electroscopes Long Range Locators- models 20, 301 and Regulator.Long range gold & silver locators are designed for general purposes and can locate anything from a single gold coin or piece of jewelry to coin hoards, caches and large targets. On occasions, the operator may want the abilities to dispense with small targets like single coins or jewelry pieces, in order to concentrate on large, more desirable ones. The S 2 plugs into the jack located at the bottom of the handle. It will mask out any small targets within the range of the locator, responding only to large targets. Once the S 2 is removed, the locator will once again lock on any gold or silver targets. No adjustments necessary. Please note : the S2 is for man made targets ( not pure gold or silver, but rather alloy type - where the gold is made more durable by adding other metals - resulting in KT gold like 14 KT - 18 KT and so on ) like gold & silver coin hoards and caches, but not for prospecting purposes. If you are looking for natural deposits ( purer gold & silver ) than you need the interface S1. Shipping and insurance is free in lower 48 states, actual all other locations. Pay Pal payment with confirmed address and shipped to same.