iron discrimination is the difference between a productive day and constant false signals

For gold prospecting

The lightweight coil and lower shaft assembly

and the Coin mode preset already has the discrimination set up to ignore most iron and foil before we touch a knob

Fisher F44 Metal Detector with 11-Inch DD Waterproof Coil dive iron discrimination is the differenceThe Fisher F44 is a 7. 69 kHz VLF metal detector with a weatherproof control housing, an 11 inch DD waterproof coil, and both computerized and manual ground balance. Five preset modes let coin shooters and relic hunters work parks, fields, and dry beach sand without constantly adjusting discrimination. It sits above the entry level F22 by adding ground balance and adjustable iron audio, which makes it a strong value for anyone stepping up from a