Schonstedt’s underground magnetic locators have been setting the standards for reliability and dependability for over 50 years. They are designed to withstand the rigors of daily on-site usage and a wide range of environmental conditions.

GA-72Cd_digitalreadoutThe Schonstedt level of sensitivity allows you to find what you’re looking for quickly, without the risk of passing over your target.


The GA-72Cd Locator detects the magnetic field of iron and steel objects. It provides audio detection signals that peak in frequency when the locator’s tip is held directly over the target. The GA-72Cd has the option of nulling or peaking.


  • Audio & Visual Output
  • Battery & Sensitivity Indicators
  • Choice of Two Audio Modes: Peak or Null response
  • 4 Levels of Sensitivity
  • Most Popular for UXO and Demining Applications
  • 3-digit LCD readout
  • Signal Strength and Polarity Indications
  • No response to aluminum, brass, or copper
  • HeliFlux® sensors
  • Modular construction; high performance components
  • 7-year warranty

GA-72Cd Specifications

AUDIO OUTPUTSwitch at “A” Signal increases or decreases in volume with gradient-field intensity
Switch at “B” Signal increases or decreases in frequency with gradient-field intensity.
VIDEO OUTPUTDigital readout and expanding bar graphs indicate polarity (+ or-) and relative
strength of the magnetic field.
INPUT POWERSupplied by two 9V batteries
BATTERY LIFE40 Hours (intermittent usage)
BATTERY CHECK4-segment LCD BATT indicator
OUTPUTApproximately 40 Hz audio tone on speaker.
Tone frequency increases or decreases with gradient-field intensity.
WEIGHTApproximately 2.5 lb (1.14 kg)
OPERATING TEMP-13° to 140°F (-25° to 60°C)
OVERALL LENGTH34.5″ (87.6 cm)
CONSTRUCTIONRugged, all solid state, polycarbonate & ABS casing

GA-72Cd description product PDF