MS-2000 gamma-ray spectrometer


The MS-2000 detector is optimized for efficient soil and sediment mapping while mounted on an off-road vehicle. Robust, efficient, and reliable in harsh conditions.


MS-2000 detector case and accessories

11 KG 
Weight optimized

90x310mm CsI crystal

500 hours
Internal storage


-20 / + 65 C
Arctic and desert mapping

Up to 45 km/h
Vehicle borne mapping

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Soil and sediment mapping, vehicle borne:
The Medusa Radiometrics MS-2000-CsI-MTS product line of radiation detection systems comprises a line of power-efficient, lightweight and robust gamma-ray sensors developed with vehicle-borne mapping applications in mind. The housing is ultra-rugged made of kevlar strengthened carbon fibre and has extra rugged end-caps. The system can be mounted on all kinds of vehicles, tractors, quads or cars.

Leading in gamma-ray sensors

Leading in innovative gamma-ray solutions

Academic collaboration

Scientific collaboration with eminent research institutes and peer-reviewed publications of the analysis procedures. 


We have over 20 years of experience in developing gamma–ray spectrometers and applications. 

Youtube video
Gamma-ray spectrometer
Scintillation crystal 2000 ml CsI
Mapping speeds Up to 45 km/h
Recording frequency Up to 5hz
Online Radionuclide analysis 40K, 238U, 232Th and 137Cs
Type uBlox ZED-P9P
Signals GLONASS, BeiDou, Galileo
Accuracy 1.5 m CEP
RTK accuracy <1 cm
Streaming RS-232, ethernet and Wi-Fi
Sensors Spectrometer, GPS, PTH
Internal storage 16 GB
Dimension 120 (⌀) x 605 (L) mm
Weight 12 kg
Operating T -20 to +65 °C
IP rating IP65
Input voltage 12-35V
Power consumption 3W (avg), 6W (max)
Battery n.a.
Wi-Fi 2.4 and 5 Ghz
Ethernet 100 Mbps
Port RS-232


mDOS & Gamman


Whether doing an airborne survey, locating a lost source with a UAV, or using our detector for a handheld survey for mapping the environment, you can count on using the same familiar interface. mDOS is developed for in-the-field usage. Optimized for real-time monitoring, ease of use and automating your survey workflow.


GammAn is our comprehensive post-processing software tailored specifically for analyzing measurement results obtained from our gamma-ray detection systems.

Both mDOS and Gamman have been developed with a focus on user-friendliness, ensuring that users of all skill levels can effortlessly navigate and leverage the full potential of our detection systems. Whether you are a seasoned expert or new to gamma-ray analysis, our software packages provide the tools you need for accurate measurements and meaningful data interpretation.

mDOS en Gamman