How much is a used metal detector worth?
Most used metal detectors resell for about $30–$250. Whether it actually powers on and detects something — a coin or a key laid on the ground — is the single most important check, since a detector that looks fine but doesn't sense metal is close to worthless no matter the brand.
That's the short version. Here's how to test one before you take it.
Used metal detector value range
| Type / condition | Est. resale range |
|---|---|
| Toy-grade / kids' detector | $5–$20 |
| Entry hobbyist (Bounty Hunter, Fisher), tested working | $30–$80 |
| Mid-tier Garrett or Minelab, tested working, good coil | $100–$250 |
| High-end multi-frequency (Garrett AT Pro/Max, Minelab Equinox) | $250–$500+ |
| Powers on but doesn't detect, or coil/cable damaged | $10–$30 (parts) |
Estimates only — actual resale depends on brand, whether it passes a working test, coil condition, and included accessories. Not guaranteed.
What drives a metal detector's resale value
- Does it actually detect metal — this is the dominant factor. Power it on and sweep it over a coin or key on the ground. A unit that powers on but never signals on a known test object is a red flag, whatever the display says.
- Brand tier. Garrett and Minelab are the recognized names serious hobbyists search for and pay real money for; Bounty Hunter and Fisher are solid entry-level names; anything toy-grade or unbranded is worth very little regardless of condition.
- Coil condition. Cracks in the search coil housing, a frayed or exposed coil cable, or a coil that doesn't match the control box are common failure points that hurt both function and price.
- Battery setup. Corrosion in the battery compartment (from batteries left in too long) is a common and sometimes fixable issue — check it before assuming the unit is dead.
- Included accessories. Headphones, a pinpointer, and a digging tool are a normal part of a hobbyist's kit — including them with the sale adds real value for the niche buyer.
Is a free metal detector worth flipping?
Yes, if it passes a basic test-object check — this is a genuine hobbyist niche with dedicated buyers on metal-detecting forums and Facebook groups who pay well for a known-working, name-brand unit. A unit that fails the test is much harder to move and worth treating as parts.
How to flip a free metal detector
- Power it on and run a test sweep over a coin, key, or other small metal object at a few different distances.
- Inspect the coil and cable for cracks, exposed wire, or a mismatched replacement coil.
- Check the battery compartment for corrosion and confirm it holds a charge or takes fresh batteries cleanly.
- Note the exact brand and model — hobbyists search by specific model, not just "metal detector."
- List with any accessories included and sell through detecting-specific forums or Facebook groups for the best price, not just general marketplaces.
Where free metal detectors come from
Metal detecting is a hobby a lot of people try briefly and then abandon once the novelty wears off — the unit ends up in a garage or closet and eventually gets given away, often still in fully working condition since it wasn't used enough to wear out.
That's the gap Freebox closes — it surfaces free finds near you with an estimated resale value already attached.
Find free metal detectors worth flipping near you
Freebox shows free stuff being given away near your ZIP, each with an estimated resale value and profit, and pings you when a high-value find drops.
Freebox is a paid app. Resale figures are estimates, not guarantees.
FAQ
How much is a used metal detector worth? Most used metal detectors resell for about $30–$250, with name-brand units (Garrett, Minelab) at the top and toy-grade or non-functional units worth very little.
Is it worth flipping a free metal detector? Yes, as long as it passes a basic test — sweep it over a coin or key and confirm it actually signals. A unit that fails this test is worth far less regardless of brand.
How do you test a metal detector before taking it? Power it on, then sweep it over a small metal object like a coin or key at various distances to confirm it signals consistently. Also check the coil and cable for visible damage.
Where's the best place to sell a used metal detector? Metal-detecting forums and dedicated Facebook groups tend to get better prices than general marketplaces, since the buyer pool there already knows and values the brands.
Related: How much are golf clubs worth? · How much is a guitar amp worth? · Free stuff near you