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Gbnryg M55Z-SX8 Metal Detector, 12-inch Coil, 5 Modes1 / 7
Product guide

Gbnryg M55Z-SX8 Metal Detector, 12-inch Coil, 5 Modes

The Gbnryg M55Z-SX8 metal detector pairs a 30.48-centimetre search coil with five detection modes and an LCD. The listing describes the search coil as IP68 waterproof, but says the controller is not waterproof, so it is intended for shallow-water searches with the control unit kept dry.

At a glance

  • Five modes include All Metal, Disc, Memory, Jewelry and PP pinpointing, according to the listing.
  • The 30.48-centimetre search coil is described as IP68 waterproof for shallow-water searches. The controller is not waterproof.
  • The listing describes a backlit LCD, adjustable stem, five sensitivity adjustments and three volume levels.
  • The feature copy claims it can locate a quarter coin up to 12 inches underground. This is a listing claim, not an independently verified result.
Price
$119.98Save 20%

Reference price: $149.99

Price checked: Nov 13, 2026

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Often bought together

Pros and cons

Pros

  • Five detection modes offer different ways to scan, discriminate, focus on a metal type or pinpoint a target.
  • The backlit LCD and adjustable stem are practical features for outdoor use and different user heights.
  • The listing claims the coil is waterproof and specifies that the controller must stay dry.

Cons

  • At 2.63 kg, the listed weight may be a consideration for longer outings or younger users.

Technical specifications

20 specifications
Identity
BrandGbnryg
ModelM55Z-SX8
Detection
Search coil size30.48 centimetres
Operating frequency9 KHz
Detection modes5 detection modes
Detection sensitivity settings5 sensitivity adjustments
Volume settings3 Volume levels
Listed detection depth12 inch underground
Display and controls
Screen technology listedLCD
Display feature2X larger backlit display
Memory functionbuilt-in on/off memory function
Power and battery
Power configurationBattery Powered
Battery requirement2 9V batteries required. (included)
Dimensions and installation
Listed adjustable length27 to 56 inches
Extended length152.9 centimetres
Weight listed2.63 kg
Materials and protection
Material listedMetal, Plastic
International protection ratingIP68
Other listed details
ColourGreen/Black
Recommended useMetal Detection

What to know before buying

Listing details to confirm

Listing details are inconsistent: the adjustable length is given as 27 to 56 inches and 152.9 centimetres, while dimensions appear both as 43.2L x 27.9W x 15H centimetres and 43.18 x 27.94 x 14.99 cm; 2.63 kg. The title and details identify a 30.48-centimetre coil, while the feature copy claims a quarter-coin detection depth of 12 inches, which is not independently confirmed. Waterproofing applies to the search coil, not the controller. Confirm the selected listing's specifications and kit before purchase.

Who is it for?

A good fit for

  • Beginners looking for a detector with several named modes and a backlit display.
  • Family or casual outdoor use where adjustable length and sensitivity settings are useful.
  • Beach walks and shallow-water searching, with the controller kept out of water.

Less suited to

  • Buyers who need a waterproof control unit or a detector specified for fully underwater use.
  • Buyers who require independently confirmed detection-depth or accuracy performance.
Gbnryg M55Z-SX8 Metal Detector, 12-inch Coil, 5 Modes · photo 2
Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 1,524 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, suitable as a starter unit and enjoyable for family use. Accuracy opinions are mixed, so buyers who need dependable target identification should weigh that concern against the listed modes and avoid treating the claimed detection depth as assured performance.

Positive themes

  • Customers describe it as easy to assemble and use.
  • Customers report that it works well in different settings and can be a suitable starter detector.
  • Customers describe it as fun and suitable for kids.

Mixed feedback

  • Customer opinions on accuracy are mixed.

Frequently asked questions

Can the detector be used underwater?

The listing describes the search coil as IP68 waterproof for shallow-water searches, but explicitly says the controller is not waterproof. It does not establish that the whole detector can be submerged.

What modes does it offer?

The listing names All Metal, Disc, Memory, Jewelry and PP pinpoint modes. It describes PP as a way to pinpoint a target.

Are batteries included?

The product details state that two 9V batteries are required and included.

How far can it detect a coin?

The feature copy claims detection of a quarter coin up to 12 inches underground. Treat that as a listing claim rather than confirmed performance.

Gbnryg M55Z-SX8 Metal Detector, 12-inch Coil, 5 Modes · photo 3
Additional product photo 3

Alternative options

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