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Glossary
Metal Detecting Gear terms, explained
Short, plain definitions of the words you'll see on product pages and spec sheets. Each one links to a guide when there's more to know.
A
- ARPA
- The Archaeological Resources Protection Act of 1979. Read the guide →
C
- Concentric coil
- A search coil with circular windings and a cone-shaped field. Read the guide →
D
- DD coil
- A search coil with overlapping D-shaped windings. Read the guide →
- Discrimination
- Telling targets apart, such as rejecting iron. Read the guide →
G
- Ground balance
- Adjusting the detector to ignore signals from the soil. Read the guide →
H
- Hot rock
- A mineralized rock that signals like a target. Read the guide →
M
- Multi-frequency
- A detector that transmits several frequencies at once. Read the guide →
P
- Pinpointer
- A handheld probe that locates a target in the hole. Read the guide →
- Pulse induction
- A detector technology that ignores salt and mineralization and reaches deep. Read the guide →
T
- Target ID
- A number the detector shows to suggest what a target is. Read the guide →
- Treasure Act
- The law requiring treasure finds in England and Wales to be reported. Read the guide →
V
- VLF
- Very low frequency, the most common metal detector technology. Read the guide →