Treasure Tracker	Fast Tracker	Tracker IV	Quick Silver	Discovery 1100	Lone Star	Quick Draw II	Discovery 2200	Legacy 3300
Feature
User Interface
LCD				X	X	X	X	X	X
Operation Status (non-menu driven)	X	X	X	X	X		X	X	X
Depth Readout							X	X
Running Depth Graph					X				X
Adjustable Sensitivity	X	X	X	X	X	X	X	X	X
Knob Control Interface	X	X	X		X		X		X
Touch Pad Control Interface				X	X	X	X	X	X
Visual Battery Life Indicator								X	X
Low-Battery Indicator	X		X	X	X	X	X
Operation Details
Search Modes	2	2	3	1	2	3	3	2	2
Discrimination Mode	X	X	X	X	X	X	X	X	X
All Metals Mode	X	X	X	X	X	X	X	X	X
Transmit Frequency kHz	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6
Target ID
Numerical Target ID System									X
Non-Numerical Category Target ID				X	X	X	X	X
Number of Target ID Categories				4	3	5	9		11
Discrimination / Notch
Levels of Adjustable Discrimination	Variable	Variable	Variable	4	4	Variable	Variable	6	8
Tone/Audio ID	1	2	2	3	3	3	3	4	4
Number of Tones	1	1	1	1	1	1	1	1	1
Selectable Notching Capabilities						X	X	X	X
Preset Notch							X
Ground System
Preset Ground Balance	X	X	X	X	X	X	X	X
Manual Ground Balance									X
Standard Searchcoil
Concentric 8-Inch Open-Faced Coil			X	X		X	X	X	X
Concentric 7-Inch Open Coil					X
Concentric 7-Inch Closed Coil		X
Concentric 6-Inch Open Coil	X
Accepts Accessory Coils			X	X	X	X	X	X	X
Power Supply
9V Alkaline Battery (not included)	2	2	2	2	2	2	2	2	2
Headphone Jack
1/4"		X	X	X	X	X	X	X	X
Warranty (in years)	1	5	5	5	5	5	5	5	5