Product · Magnetometers
GEM Systems GSM-19 Overhauser Magnetometer
An Overhauser-effect magnetometer offering an order-of-magnitude sensitivity improvement over proton precession systems, used as a primary standard in exploration and magnetic observatories.
New Refurbished Absolute Certified Surplus
About the GEM Systems GSM-19 Overhauser Magnetometer
The GSM-19 (Overhauser configuration) uses RF polarization of free electrons to continuously polarize the proton population, delivering substantially higher sensitivity and faster sampling than classical proton precession sensors while retaining their drift-free, absolute measurement principle.
It is used as a primary reference-grade instrument in mineral exploration, magnetic observatories, and any survey where proton-precession sensitivity is no longer sufficient but full atomic (cesium/potassium) cost isn't justified.
| Specification | Value |
|---|---|
| Sensor type | Overhauser effect |
| Sensitivity | Order-of-magnitude better than proton precession |
| Sample rate | Faster than classical proton systems |
| Power consumption | Lower than proton precession |
| Positioning | Integrated GPS |
| Typical use | Exploration, magnetic observatories |
Available across all four PartnerGeometrics condition tiers — New, Refurbished, Absolute Certified, and Surplus. See our condition tier guide for details on what each tier includes.