Resistivity Meter, Analog

This versatile soil resistivity meter is designed for in-situ and laboratory testing in accordance with ASTM G187, ASTM G57, and AASHTO T288 standards. It measures soil and water resistivity from 0.01Ω to 1.1MΩ using 2-, 3-, or 4-electrode methods or a soil box, making it ideal for corrosion assessment and geotechnical investigations. A 97Hz crystal-controlled square wave current source and narrow band-pass filtering ensure readings are stable and unaffected by stray interference signals. Housed in a rugged, lightweight IP67-rated case, the meter features a removable lid for easy lead management and runs on standard C-cell alkaline batteries for dependable field use without external power.

Features

• Complies with ASTM G187, ASTM G57, and AASHTO T288 for soil resistivity testing.
• Measures resistivity from 0.01Ω to 1.1MΩ for soil and water, from distilled to sea water.
• Supports 2-, 3-, and 4-electrode methods and use with a soil/electrolyte box.
• 97Hz crystal-controlled square wave source with narrow band-pass filter minimizes stray electrical interference.
• Rugged, lightweight, weatherproof IP67 case with removable lid for easy field handling.
• Battery-powered with standard C-cell alkaline batteries for portable, cable-free operation.