Geometric G-858 Dual Sensor Magnetometer

For Sale Geometric G-858 Dual Sensor Magnetometer. Function tested the unit and found it to be fully functional with good cosmetic condition.

The Geometrics G-858 MagMapper is a high-sensitivity, fast-sampling cesium vapor magnetometer used for geophysical surveying. The dual-sensor configuration enhances survey speed and allows for vertical or horizontal gradiometer measurements. It is widely used for archaeological mapping, utility detection, and environmental surveys.

Key Features and Capabilities :

• • Performance : Uses cesium vapor technology with a sensitivity of 0.05 nT P-P, providing high resolution for detecting small objects.
  • Dual Sensor/Gradiometer : By adding a second sensor, the G-858 measures the magnetic field gradient, which enhances the detection of small, shallow targets while reducing diurnal drift effects.
  • Field Operation : The system features a backpack with a handheld staff for the sensors, allowing for rapid “walking” surveys.
  • Console Display : The console offers a graphical interface for surveying, featuring a “Quick Look” data profile for real-time monitoring of survey lines.
  • Data Recording : Supports continuous or discrete data acquisition and records GPS positions (via External I/O cable assembly) for mapping, with data stored for later, easy retrieval on a computer.
  • Applications : Ideal for finding iron/steel items, pipelines, and archaeological features.

Dual sensors included for gradiometer setup.

Intended Use :

• • Exploration
  • Treasure hunting
  • Environmental surveys
  • Geophysics
  • General Purpose
  • Pinpointing
  • Gold Prospecting