Gossen Metrawatt GEOHM XTRA, High-Precision Earthing and Low-Resistance Measuring Instrument with GPS, M592B

Gossen Metrawatt GEOHM XTRA, High-Precision Earthing and Low-Resistance Measuring Instrument with GPS, M592B, 4012932128352

The measuring method for testing lightning protection systems under highly realistic conditions based on various types of the pulse measuring method is noteworthy. Furthermore, a professional earthing analysis can be conducted on the basis of measured interference voltages and interference frequencies. In combination with the integrated GPS module, all measured values are saved together with GPS coordinates. Measurements with various measuring methods: All common methods of earth measurement can be easily and reliably implemented with the GEOHM XTRA. In combination with the integrated GPS module, all measured values are saved together with GPS coordinates. Thanks to extensive measuring accessories, earth measurements and resistance measurements can be easily implemented in any environment at any earthing or lightning protection system without disconnecting the earth electrode.

• Earthing resistance by means of the 3/4-wire measuring method
• Selective earth resistance by means of the 3-wire measuring method with current clamp / advantage: no influence on parallel earth electrodes!
• Earth loop resistance with 2 current claims or Rogowski coils, up to 4 m / advantage: no need to disconnect the earthing system!
• Soil resistivity according to the Wenner methodfor the preparation of soil assessments
• Leakage current / current measurement by means of current clamp or flexible current sensor
• Low-resistance measurement with ‰¥ 200 mA per EN 61557-4 / VDE 0413-4
• Integrated GPS module for storing the positions of test objects


• Cost savingsa single instrument for numerous measuring tasks
• Time savingssimple troubleshooting thanks to professional earthing analysis
• Easy handlingthanks to intuitive user prompting, graphic display and help function
• Quick reproducibilitythanks to modern data management
• Rugged measuring caseuse in adverse environments and easy transport


• 3, 4-pole measurement
• Selective 3-pole measurement
• 4-pole measurement via pulse method
• Earth loop resistance via 2-clamp method
• Soil resistivity according to Wenner
• Current measurement with clamp
• Low-resistance measurement with 200 mA


• 1 GEOHM XTRA with GPS module
• 1 Carrying case
• 1 Measurement cable, 1.2 m, red
• 1 Measurement cable, 2.2 m, black
• 2 Alligator clips, red and black
• 2 Measurement cables, 25 m, red and green
• 1 Measurement cable, 50 m, blue
• 4 Earth spikes, 30 cm
• 1 USB cable
• 1 Automotive charging cable
• 1 Screw terminal
• 1 Power pack
• 1 Set of operating instructions
• 1 Calibration certificate