The GSM-19 is our mid-range instrument with excellent benefits for subsurface exploration. The Overhauser system offers an order-of-magnitude increase in sensitivity over GEM’s Proton system and matching sensitivities of some alkali devices. With data quality exceeding the standard proton precession, and comparable to the costlier optically pumped cesium magnetometer systems, the GSM-19 is a standard for many applications.

Overhauser magnetometers also provide high absolute accuracy, ruggedness, and reliability – as numerous systems are in operation around the world with an excellent performance record so that the GSM-19 can be counted on in any situation.


Technical specifications

Sensitivity: Standard GSM 19   0.022 nT @ 1 Hz
GSM 19PRO    0.015 nT @ 1 Hz
Resolution:0.01 nT
Absolute Accuracy:+/- 0.1 nT
Range:20,000 to 120,000 nT
Gradient Tolerance:up to 10,000 nT/m
Samples at:60+, 5, 3, 2, 1, 0.5, 0.2 sec
Operating Temperature:-40°C to +50°C
Modes Manual: Coordinates, time, date and reading stored automatically at upto 0.2 sec. B
ase Station: Time, date and reading stored at 1 to 60 second intervals.
Remote Control: Optional remote control using RS-232 interface.
Input / Output: Input/Output: RS-232 using 6pin weatherproof connector with USB adapter.

Manufacturer : GEM Systems