The M-101 will not respond to non-metallic targets such as plastic or fiberglass. The M-101 is not designed to be a wire or pipe tracer. Fisher Research manufactures other specific equip- ment for that purpose.
SENSITIVITY HEAD PHONES Sensitivity This control turns the M-101 On & Off. It also permits a wide range of sensitivity to metal targets. MAXimum position is normally used in the initial scanning and locating operation. MINimum or reduced sensitivity is used to help pinpoint metal objects.
NOTE: Occasionally check the batteries during use, as weak batteries could lead to reduced signal depth. SCANNING Turn the M-101 On (Sensitivity control knob) to the RED arrow. If there is a sound and meter reading, reduce (turn counter-clockwise) the Penetration control, or move search coil away from any nearby metal.
PRINCIPLES OF OPERATION When the unit is properly tuned, the M-101 will locate ½ inch (1.25 cm) diameter rebar 8 to 9 inches (20 to 23 cm) from the bottom of the search coil. A larger target can be located deeper, a smaller target shallower.
Shipping Dimensions: .. 26.5 x 6.25 x 6.25 inches (67 x 16 x 16 cm) Fisher Research Laboratory does not warrant suitability to specific use. Fisher Research Laboratory shall in no event be liable for any direct, inciden- tal, consequential or indirect damages.
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R E P U T A T I O N Fisher produced the first patented metal detector in 1931. For over 70 years, the Fisher logo has been a mark of excellence. 2 - Y E A R W A R R A N T Y...