Industrial metal detector

VALVE, PEDESTAL & BOX LOCATOR
The Fisher M-97 is specially designed for finding buried or paved over valves, boxes, or manhole covers, or any other concealed metallic object. It also locates targets made of aluminum, brass and lead. The M-97 features push button tuning allowing the user to quickly and easily maintain optimum sensitivity for easy pinpointing of buried metallic objects. Plus, the M-97 offers auto-tune circuitry and a waterproof search coil. New to the M series is the ease with which the M-97 can be stored. Just compact the lower stem, twist the search coil 90 degrees, and fold the search coil flat. The M-97 fits easily into the optional carrying case. In the Fisher tradition, the M-97 is affordable, tough, and simple to use while providing maximum performance. A two year limited warranty comes standard with the unit.

Features
Two knobs and a pushbutton for simple operation Adjustable shaft with double locking stem Ground Effect Rejection VLF eliminates annoying or false signals from wet ground foliage, pavement or mineralized ground High sensitivity for maximum penetration through soil, asphalt or concrete Built-in Battery Test/Pushbutton Tuning Ultra Slow Auto-Tune to stabilize ground tuning and minimize frequency drift Identifies metallic objects by speaker sound and needle movement Compact size for convenient storage

Specifications
Output Frequencies of search coil Sensitivity Sensitivity Adjustment Range Output Indication / Meter 1 milliamp, Speaker Headset (optional) Audio Frequency Power Supply +9V supplies: Battery Life Alkaline Power Consumption At min. sound 8 mA At max. sound 50 mA At Audio threshold 17.5 to 18.5 mA Search Coil Configuration Weight with 8-inch search coil 11-inch search coil Dimensions Shipping Dimensions	4.5 kHz 0.20 mv RMS for full scale 12:1 0-100 linear scale 16-ohm impedance 8-ohm impedance 450 Hz (2) 9V batteries 25-35 hours (-9V) 13.8 mA Double-D 3.3 lbs. (1.5kg) 3.9 lbs. (1.8kg) 38 to 50 inches adjustable (96 to 127 cm) 6'' x 13'' x 35'' (15.12 x 32.76 x 82.2 cm)