Fisher M-97 metal Detector ( Alat Detektor Logam )
Automatic Retune Button, Sensitivity Selector and Manual Ground Compensation
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 to quickly & easily maintain optimum sensitivity
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
Waterproof search coil
Specifications
Subject to improvement or modification without notice.
Output Frequencies of search coil	4.5 kHz
Sensitivity	0.20 mv RMS for full scale
Sensitivity Adjustment Range	12:01
Operating Temp	-4 to +158°F ( -200 to +70°C )
Output Indication . Meter 1 milliamp	0-100 linear scale
	Speaker.......................16-ohm impedance
	Headset ( optional )...... 8-ohm impedance
	Audio Frequency...........450 Hz
Power Supply +9V supplies	( 2 ) 9 V batteries
Battery Life Alkaline	15-25 hours
Power Consumption	( -9 V ) 13.8 mA
	At min. sound 8 mA
	At max. sound 50 mA
	At Audio threshold 17.5 to 18.5 mA
Search Coil Configuration	Double-D
Weight with 8-inch search coil	3.3 lbs. ( 1.5 kg )
11-inch search coil	3.9 lbs. ( 1.8 kg )
Weight with 8” Coil	4.25 lbs ( 1.9 kg )
Dimensions: Length	28” to 48” adjustable ( 71 cm to 122 cm )
Shipping Weight	7 lbs ( 3 kg )
Dimensions	38 to 50 inches adjustable ( 96 to 127 cm )
Shipping Dimensions	6” x 13” x 35” ( 15.12 x 32.76 x 82.2 cm )