Large Double-D coil.
High frequency of 18.75 kHz.
Size 26.5 cm.
Pros:
A large double-D coil that allows you search by a larger area in less time. With this coil detector find small items such as necklace and small earrings or other small items that you want to look for.
Weight: 600 grams.
Installed in 2 minutes. No tools are required.
Cons:
Can not quite as deep as coils with lower frequency.