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The Detech 18 inch DD Closed Design is an 18 inch (45.7 cm) aftermarket Double-D gold coil with a closed housing for Minelab's GPX, GP and SD series pulse induction detectors. It weighs 1,460 g (51.5 oz) and is designed for gold detecting open areas known to hold deep gold, while staying sensitive to sub-gram gold.
| Configuration | |
|---|---|
| Coil | Detech 18 inch DD Closed Design, 18 in (45.7 cm) |
| Type | Double-D |
| Fits | Minelab GPX, GP, SD series |
| Waterproof | Yes |
What is in the box with the Detech 18 inch DD Closed Design
Detech's standard contents for the 18 inch DD Closed Design
- Detech 18 inch DD Closed Design search coil
- Coil cover
Which detectors the 18 inch DD Closed Design fits
- Minelab GPX series
- Minelab GP series
- Minelab SD series
The 18 inch DD Closed Design is made for Minelab's GPX, GP and SD series gold detectors.
When to use the 18 inch DD Closed Design
An 18 inch DD on a GPX, GP or SD detector is a coil for big, open ground with a known history of deep gold, where long, systematic lines matter more than getting into tight spots. Before you commit to a long grid, run a few test sweeps and confirm the threshold is smooth enough to hear a faint signal, and expect some ground noise and interference to remain.
At 1,460 g (51.5 oz) this coil asks for a harness and bungee on a full day. Set the detector up for the coil and ground balance again after fitting it. The housing is ribbed to absorb mechanical shocks and vibration and has maximum UV protection, and the coil keeps its inductive balance across a very wide temperature range. Our metal detector coil guide explains how coil size and type trade coverage for separation.
Detech 18 inch DD Closed Design specifications
| Specification | Detech 18 inch DD Closed Design |
|---|---|
| Size | 18 in (45.7 cm) |
| Type | Double-D |
| Design | Closed |
| Weight | 1,460 g (51.5 oz) |
| Waterproof | Yes |
| Coil cover | Included |
| Fits | Minelab GPX, GP, SD series |
Every Detech coil we carry is in our Detech search coils collection.
Serious Detecting is a family-owned, authorized Detech dealer with a showroom in Ypsilanti, Michigan, and our staff help by phone or email.
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