Geometrics is proud to introduce the latest generation of land magnetometers to the geophysical market! The G-864 marries the highest quality magnetometer available today with a modern user interface, making surveying easier and more efficient for years to come. The G-864 cesium magnetometer utilizes a modified Android tablet, the Getac ZX70, as the data console. This offers users the ability to store large amounts of data as either a single or multiple projects. The Android tablet incorporates a navigational display and the ability to preload survey lines, a feature that will steer users throughout the survey area. Preloading the survey lines, instead of using traditional tape measures and stakes to create the lines in the field, reduces setup time and crew size. The G-864 lets users visualize their collected data as a color map. This allows for instant data QC and for creating new survey lines for in-fill where additional data may be needed. Finally, logging data using a wireless platform eliminates the potential for snagging or breaking instrument cables during the survey. Modern surveys require large arrays of magnetometers to cover a site as fast as possible. The G-864 can handle up to 4 magnetometers at a time, offering the ability to survey a wider area at once. With a maximum sample rate of 10 Hz, a noise floor at <0.004 nT sqrtHz rms the new G-864 allows for faster, more accurate surveys. Time is money, and the G-864 will help you save both.


  • AndroidTM Acquisition Software - Modern user interface allows for WiFi communication and unlimited expansion of features.
  • GPS Navigation - No Staking! Dene survey geometry beforehand to limit eld time.
  • Real-Time In-Field Data Review - Plot GPS positions, analyze proles, and create a color contour map before leaving the eld.
  • Low Noise and High Sensitivity - Create high-resolution maps when you measure smaller magnetic field varations
  • Data Redundancy - Avoid data loss by storing data on the tablet and on the magnetometer simultaneously

Features:

  • Operating Principle: Self-oscillating split-beam Cesium Vapor (non-radioactive).
  • Operating Range: 20,000 to 100,000 nT.
  • Operating Zones: The earth’s eld vector should be at an angle greater than 10° from the sensor’s equator and greater than 10° from the sensor’s long axis. Automatic hemisphere switching.
  • Noise/Sensitivity: < 0.004 nT Hzrms. (SX (export) version: 0.02 nT/ Hzrms).
  • Max Sample Rate: 10 Hz.
  • Heading Error: 0.15 nT over entire 360° equatorial and polar spins.
  • Resolution: 0.001 nT
  • Gradient Tolerance: 20,000 nT/m.
  • Temperature Drift: 0.05nT/°C.
  • Power: 24 to 35 VDC, 15 - 30 W to start and 20 to 35 VDC, 15 W to run.
  • Data Logger: Getac ZX70 Android tablet
  • Data Storage: 1 GB USB drive, 16GB on tablet.
  • Data Format: ASCII

The G-864 is well-suited for mineral exploration, civil and environmental engineering projects, UXO detection and archaeological surveys. With a maximum sample rate of 10 Hz, a noise oor at<0.004 nT Hzrms the new G-864 allows for faster, more accurate surveys. Time is money, and the G-864 will help you save both!