Fisher F70 Multi-Purpose Metal Detector features:
13 kHz frequency - good for coin shooting, relic hunting, and gold prospecting.
Frequency shift for eliminating electrical interference and crosstalk
Advanced software-based motion discrimination with notch for searching trashy areas.
All metals auto-tune mode for deep-searching in non-trashy areas.
Visual target ID by category & 0-99 indication, both discrimination & auto-tune modes.
Target ID confidence bar graph
High-resolution push-button ground balance with ground readout
Ground balance range goes all the way to salt
Continuous display of ground mineral concentration
Push-button static pinpoint with variable audio pitch and visual depth reading
Independent sensitivity and threshold settings provide fine control over response
Speed selection - normal for most situations, slow for deep coins in non-trashy areas
Batteries under the elbow provide counterweight - ergonomic design
Battery life on 4 alkaline AA batteries, 40 hours
Switch back and forth between two programs:saves both programs when turned off
Standard 10 inch elliptical concentric open-center searchcoil