Golden Spark For Gold, Metal & Treasure Detectors

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The Garrett Goldmaster GMT24K metal detector can be found in goldfields all over the world! This machine offers a new generation of VLF detecting technology, with features that will appeal to both veteran and novice prospectors.

Gold Nugget Garrett GoldMaster GMT 24K Metal Detector Iron and hot rock removal with a metal detector
Waterproof Search coil and Rainproof Detector
Turn it on and start looking!
Take your prospecting to new depths with the Garrett Goldmaster® 24k, which features a 50% boost in coil voltage over previous Whites gold detector models, as well as an all-new XGB ground balance technology. This gold nugget detector represents a new generation of VLF detection technology, with features that will appeal to both veteran and novice prospectors.


2 Feet

Made In



Starting with the industry-standard 48kHz operating frequency, we’ve bundled everything you’ll need to go gold-hunting in one convenient package. All of the machine’s settings, as well as important target information, are shown on a big, illuminated display. The Ferrous, Gold, and High Conductor ranges are mirrored with Target ID numbers ranging from 0-99 on the Target Graph at the top of the display.


Auto tracking system allows the GM24k to be used in a wide variety of ground conditions with more stable operation and less ground noise.


  1. SENSITIVITY – Set the sensitivity at a level that does not result in false signals from the ground. Very strong ground may result in the symbol on screen and a loud sound – this means the sensitivity is too high.
  2. GROUND BALANCE – With the default setting, the detector will use XGB to automatically ground balance. Tap to lock the ground balance to the current setting. Tapping when the ground balance is locked will update the current ground setting to what is under the coil.
  3. GROUND SCAN – Hold to put the detector into Ground Scan mode. The top bar displays the ground strength and the two digit numbers display the ground type (phase). Useful for tracing paystreaks. Sensitivity Adjust other settings FEATURES continued
  4. IRON CANCEL – Tap to silence hot rocks, trash and mineral changes in both audio modes. Hold to adjust the Iron Cancel setting (tap the button to cancel high-wrap hot rocks). Note that this setting may decrease the detector’s sensitivity to very small gold, but is necessary in difficult ground conditions.
  5. VOLUME and THRESHOLD – Tap to adjust the volume with the up and down buttons. Press and hold for one second to adjust the threshold with the up and down buttons (“th” displays on the screen). With the volume at levels over 8 you can enable Boost 1 and Boost 2 for maximum sensitivity.
  6. AUDIO MODE – With the displayed on the screen, the detector is in “BEEP” audio mode (high tone = good target, low tone = bad target). The default setting (without on-screen) is a traditional All-Metal audio mode with greater sensitivity to small targets.
  7. SAT – SAT can smooth out ground inconsistencies. Press and hold for one second to adjust it (“Sa” displays on screen, 2 is the default setting).
  8. PINPOINT – Hold for non-motion pinpoint mode. In difficult ground this mode may be affected by mineralization.
  9. BACKLIGHT – Tap to enable the backlight (this reduces battery life). 10. FREQUENCY SHIFT – Hold when turning the detector on to shift frequency (useful when there is EMI). Use and to change frequencies. Power off to save the selection.
  10. FACTORY RESET – Hold when turning on the detector. Press and hold button when “Fd” is on screen to reset the machine to factory default.