Independently researched Detector Comparison
Fisher F75 vs Garrett AT Pro
F75 is the lighter, more adjustable inland relic detector; AT Pro is the rugged waterproof choice. F75 adds FastGrab/manual ground balance, mineralization data and specialized processes, while AT Pro offers simpler proportional audio and 3 m submersion.
Bottom line
F75 for advanced dry-land work; AT Pro for water and simpler operation
Choose F75 for mineralized inland sites, relic hunting and users who will exploit 13 kHz, Fe3O4 feedback, all-metal modes and process selection. Choose AT Pro for rain, rivers and uncomplicated 15 kHz Pro Audio. F75 is not waterproof; that single limitation overrides its extra controls near water.
Decision table
The differences that change the decision
| Factor | Fisher F75 | Garrett AT Pro |
|---|---|---|
| Frequency system | 13 kHz single-frequency VLF | 15 kHz single-frequency VLF |
| Waterproofing | waterproof coil; control box not submersible | 3 m / 10 ft |
| Best fit | experienced relic and inland hunters | freshwater and relic hunters who value proportional audio |
| Main advantage | fast response, boost/process choices and ergonomic balance | Pro Audio, Iron Audio and 40 iron-discrimination segments |
| Primary limitation | older EMI-sensitive platform | older single-frequency platform without built-in wireless |
Specific recommendations
Choose by terrain and operating style
Fisher F75
fast response, boost/process choices and ergonomic balance; best suited to experienced relic and inland hunters.
- 13 kHz single-frequency VLF
- waterproof coil; control box not submersible
- Limitation: older EMI-sensitive platform
Garrett AT Pro
Pro Audio, Iron Audio and 40 iron-discrimination segments; best suited to freshwater and relic hunters who value proportional audio.
- 15 kHz single-frequency VLF
- 3 m / 10 ft
- Limitation: older single-frequency platform without built-in wireless
Decision analysis
What actually changes the purchase
F75 operates at 13 kHz with FastGrab and manual ground balance, motion/static all-metal modes, 0–99 ID and an 11-inch bi-axial DD coil. Its information-rich interface rewards experienced setup.
AT Pro uses 15 kHz, Standard and proportional Pro audio, 40 iron-discrimination segments and an 8.5×11-inch DD coil. Garrett rates the complete detector to 3 m.
Neither frequency creates a universal depth winner. F75’s ground data and processes can matter in difficult inland soil; AT Pro’s sealed housing and simpler audio matter in real field durability.
FAQ
Targeted questions answered
What frequencies do F75 and AT Pro use?
F75 uses 13 kHz; AT Pro uses 15 kHz.
Is Fisher F75 waterproof?
No. Its coil is waterproof, but the control housing is not.
How waterproof is AT Pro?
Garrett rates the complete detector to 3 m (10 ft).
What ground balance does F75 provide?
FastGrab automatic ground balance plus manual adjustment in applicable operation.
What does F75 Fe3O4 show?
A bar graph estimates the amount of magnetic ground mineralization while the coil is moving.
Which is easier to learn?
AT Pro. F75 offers more processes and ground information but demands more operator understanding.
Which is better for river detecting?
AT Pro because it is fully submersible; use compatible waterproof audio underwater.
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Buy for the sites you actually hunt
For Fisher F75 vs Garrett AT Pro, the correct choice is the one whose ground handling and controls solve the conditions you face repeatedly.
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