Gbnryg M55J Metal Detector with 12-Inch Coil

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Product guide

Gbnryg M55J Metal Detector with 12-Inch Coil

Inch: The Gbnryg M55J metal detector combines five detection modes with an LCD and a waterproof search coil. Its adjustable shaft and reported simple assembly suit casual and family searches, while customer feedback is mixed on accuracy. The listing says the coil is waterproof but the controller is not.

At a glance

Five modes include All Metal, Disc, Memory, Jewelry and PP pinpointing, according to the listing.
The listing describes a backlit LCD, adjustable sensitivity and three volume levels.
The search coil is described as IP68 waterproof. The control unit is explicitly not waterproof.
The shaft is claimed to adjust from 19 to 59 inches for use by people of different heights.

Price

$119.98Save 20%

Reference price: ~~$149.99~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

Five detection modes provide distinct options for broad detection, metal discrimination, target focus and pinpointing.
A backlit LCD and adjustable volume can help with reading and operation in different environments.
The coil's stated IP68 rating supports the listed shallow-water and beach-search use, provided the controller stays dry.

Cons

The controller is not waterproof, limiting water use to situations where the control unit remains dry.
Customer feedback reports mixed opinions about detection accuracy, so buyers seeking dependable target identification should account for that uncertainty.

Technical specifications

13 specifications

Identity
Brand	Gbnryg
Model	M55J

Detection and display
Display technology listed	LCD
Detection modes	5
Search coil size	12 inches

Power and battery
Power configuration	Battery Powered
Battery life listed	40 hours
Battery requirement	2 9V batteries required. (included)

Dimensions and installation
Weight listed	1.27 kg
Adjustable length claim	19 to 59 inches
Extended length listed	60.2 inches

Materials and protection
Material listed	Metal Plastic
Search coil protection rating	IP68

What to know before buying

Listing details to confirm

Listing details are inconsistent or unconfirmed: dimensions appear as both 27.9L x 15W x 43.2H centimetres and 43.18 x 27.94 x 14.99 cm; the adjustable length is stated as 19 to 59 inches while another field lists 60.2 inches extended; and the kit description claims two batteries, a backpack, headphones, digger and manual, while the explicit battery detail confirms only two included 9V batteries. Check the selected listing for the intended dimensions and bundle contents.

Who is it for?

A good fit for

Beginners who want multiple modes and a display for casual metal detecting.
Families looking for an adjustable detector that customer feedback describes as easy to assemble and suitable for kids.
Beach or shallow-water searches where the coil can get wet and the controller can be kept dry.

Less suited to

Searches requiring the entire detector, including its controller, to be waterproof.
Buyers who need consistent, verified accuracy claims or unambiguous dimensions and kit contents before purchase.

Gbnryg M55J Metal Detector with 12-Inch Coil · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 1,520 ratings

5 stars65%65%
4 stars18%18%
3 stars8%8%
2 stars2%2%
1 star7%7%

Customer feedback describes the detector as easy to assemble and use, a suitable starting option, and fun for family use. Some customers also report that it works well in different settings, but opinions on accuracy are mixed. That distinction matters for buyers relying on target identification rather than casual exploration. The rating distribution is mostly positive but includes a meaningful spread of lower ratings, which does not establish why those customers rated it that way.

Positive themes

Customers report easy assembly and straightforward operation.
Feedback describes it as a useful starting detector and suitable for kids.

Mixed feedback

Opinions on detection accuracy are mixed.

Frequently asked questions

Can the Gbnryg M55J be used underwater?

The listing describes the search coil as IP68 waterproof and mentions shallow-water searches, but says the controller is not waterproof. Keep the control unit dry.

What detection modes does it have?

The listing names All Metal, Disc, Memory, Jewelry and PP pinpointing modes.

How does the detector's length adjust?

A feature claim gives an adjustable range of 19 to 59 inches, while a separate detail lists 60.2 inches extended. Confirm the applicable measurement in the selected listing.

What comes in the kit?

The feature text claims two batteries, a backpack, over-ear headphones, a digger and a manual. The product details specifically confirm two included 9V batteries, so check the selected listing for the other items.