F70 Multi-Purpose Metal Detector
by Fisher Labs®
Fisher F70 Metal Detector Features:
Identify your target
- 8-segment visual target ID lets you differentiate trash from treasure
- 4-tone audio ID with versatile tuning lets you "hear" different target metals
- 2-digit numeric target ID with a 0-99 range displays probable metal type in discrimination AND auto-tune modes
Advanced visual display
- Easy-to-read LCD screen; view the entire menu on one screen
- Large 2-digit readout shows target ID in motion mode & depth in pinpoint mode
- Target categories with indicators show what you discriminated out
- Target confidence meter shows likelihood of correct target ID
- Dirt bar graph displays amount of soil mineralization
- Ground phase number displays type of soil mineralization
- Battery life indicator
Controls
- One-touch high-resolution automatic or manual ground balance matches your detector to soil conditions for easier hunting
- Discrimination with notch control ignores selected trash target categories, like foil or pull tabs
- Pinpoint with numeric depth tells you where the target is & how deep to dig
- Sensitivity controls adjust for soil mineralization & electronic interference
- Threshold tunes out chatter & background noise from mineralized soils & fine-tunes sensitivity
- Frequency shift cancels out electrical interference & crosstalk
- All-metal auto-tune gives you automatic ground-balance & maximum depth in good conditions
- 2 speed adjustments let you choose between great separation & extra sensitivity / depth
- Adjustable audio tones tailor audio ID to your treasure hunting style
Capabilities
- 2 programmable settings for easy access to your most-used conditions
- Automatically saves your settings; when you turn it back on, get started without adjusting all over again
- Quick response: sweep your search coil quickly without losing targets
- Light weight; best balance in the industry; adjustable arm rest
- Superb sensitivity; detect US coins down to 14 inches & large objects down to several feet
- Ground balance range goes all the way to salt
- Can share search coils with the F75
Included
10" Elliptical Search Coil
F70 Specifications
- Mechanical:
- 3-piece breakdown aluminum pole system
- Batteries under elbow
- Armrest adjustment - forward/backward
- Search Coil: 9¾" waterproof, open-frame, concentric elliptical
- Batteries: 4 - AA, alkaline (included)
- Battery Life:
- Typically 40 hours with high quality alkaline batteries
- Estimated 80 hours with nickel oxyhydroxide batteries
- Estimated 65 hours with lithium iron disulfide batteries
- Weight: 2 lbs. 15 oz. (1.3kg), with batteries installed
- Operating Principle: VLF induction balance
- Operating Frequency: nominal 13 kHz, quartz crystal timing reference
- Basic Sensitivity: 6 x 109; root Hertz (detectivity)
- Lag Coefficient: 78 milliseconds
- Overload: standard 10" elliptical concentric coil:
- Reactive approximately 10,000 micro-cgs
- Resistive approximately 1,200 micro-cgs
- Overload: accessory 11" bi-axial coil:
- Reactive approximately 30,000 micro-cgs
- Resistive approximately 3,700 micro-cgs
- Resistive Overload: approximately 1,200 micro-cgs units (volume susceptibility)
4,800 micro-cgs units with sensitivity < 30 - Ground Balancing Range: from ferrite to salt, inclusive
- Discrimination Ground Suppression: combination of 2nd and 3rd order methods
- ID Ground Suppression: 3rd order
- Operating Temp Range: 4° to +122°F (-20° to +50°C)
- Operating Humidity Range: 0-90% non-condensing
Warranty
5 Year Limited
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