Model: GP-2 GeoTest - Amprobe
Ground Resistance & Resistivity Tester

Features:

• Measures Earth ground resistance - 3 point (fall of potential) or 2 point tests
• Automatically calculates resistivity - 4 point test
• Automatic voltage measurement prevents false measurements
• Automatically applies three testing frequencies for the most accurate readings
• Test leads, auxiliary electrodes and software are included for complete instrument
• Auto ranging
• 999 internal memory locations to store measurements
• RS-232 download to a personal computer
• CATIII 250V
• Spec Sheet (PDF file)