
McOHM EL3i
All-in-one resistivity meter for surface sounding and borehole logging
The McOHM EL3i integrates a high-power transmitter, a 24-bit precision receiver, and a 10.1-inch color tablet into a single portable case — covering both electrical sounding and borehole logging (resistivity, temperature, and caliper) without the need for separate instruments. Its 400 V transmitter (expandable to 1000 mA with a Power Booster) and 10 MΩ preamplifier deliver stable measurements in difficult geological conditions. Survey data are saved directly in CSV format via USB, enabling fast post-processing on any PC.
Request a Quote for This ProductApplications
- Vertical electrical sounding (VES)
- Borehole resistivity logging
- Borehole temperature and caliper logging
- Groundwater exploration
- Engineering site investigation
Specifications
- Max. Output Voltage
- 400 V (800 V p-p)
- Max. Output Current
- 120 mA (1000 mA with Power Booster MODEL-2162)
- Measurement Resolution
- 0.001 mV
- A/D Converter
- 24 bit
- Display
- 10.1 inch color LCD tablet (1920 × 1200 px), Windows 10 Pro 64-bit
- Weight
- 9 kg



