Very easy to use and with scrap filter, depth indicator and battery indicator! The detected metals are divided into three categories which are shown as smilies from left to right on the display: Left: Iron and metals with low conductivity values, mostly scrap. Center: Smallest coins, gold rings, copper, bronze and other metals in the medium conductivity range, e.g. aluminum foil, can tabs, etc. Right: Coins including copper and silver coins and most modern coins.