

Fluke 1625-2 GEO Earth Ground Tester Kit
The Fluke 1625-2 GEO Earth Ground Tester Kit is a versatile and rugged instrument designed for comprehensive earth ground testing. Capable of performing stakeless, selective, 3-pole, and 4-pole tests, it simplifies measuring earth ground loop resistances—even in challenging environments where driving test stakes is impractical. With Automatic Frequency Control (AFC), internal memory storage, USB connectivity, and an IP56 outdoor rating, the 1625-2 delivers reliable performance for electricians, technicians, and engineers handling grounding system maintenance and troubleshooting.
Description
The Fluke 1625-2 GEO Earth Ground Tester Kit offers unmatched flexibility in testing grounding systems across industrial, commercial, and utility environments. It supports four testing methods:
- 3- and 4-pole fall-of-potential testing
- 4-pole soil resistivity testing
- Selective testing using one clamp and stakes
- Stakeless testing using two clamps only
This makes the 1625-2 a perfect solution for situations where traditional test stakes cannot be used, such as inside buildings, paved areas, and confined spaces.
Its Automatic Frequency Control (AFC) automatically detects interference and selects the optimal measurement frequency to improve accuracy. With R impedance measurement at 55 Hz*, the tester more precisely reflects real-world fault-to-ground resistance. Adjustable limits also make pass/fail testing faster and simpler.
The tester includes internal memory capable of storing up to 1,500 records, which can be quickly transferred via USB connectivity for reporting and analysis. Color-coded test leads, heavy-duty stakes, and an ergonomic design make setup and teardown efficient, reducing testing time by up to 50%.
Built to withstand tough conditions, the IP56-rated enclosure protects against dust and water, while the rugged carrying case ensures maximum portability and protection. From power distribution facilities to construction sites, the Fluke 1625-2 delivers reliability, durability, and high performance for every type of grounding application.
Features
- Complete Testing Flexibility – Performs 3-pole, 4-pole, selective, and stakeless earth ground resistance tests.
- Stakeless Testing Capability – Measures earth ground loop resistance without driving auxiliary test stakes, perfect for indoor and paved environments.
- Automatic Frequency Control (AFC) – Detects and avoids electrical interference for more accurate measurements.
- R* Measurement Technology – Calculates earth ground impedance at 55 Hz, providing realistic fault-to-ground resistance values.
- Large Internal Memory – Stores up to 1,500 test records with USB data transfer for faster reporting and analysis.
- Fast Setup & Testing – Color-coded test leads and heavy-duty stakes reduce setup and teardown time by up to 50%.
- Built for Harsh Environments – Rated IP56 for dust and water protection; suitable for outdoor and industrial use.
- Wide Measurement Range – Measures resistance from 0.02 Ω to 300 kΩ with high accuracy for various applications.
- Rugged & Reliable Design – Includes a heavy-duty carrying case and can withstand demanding job-site conditions.
- USB Connectivity – Easy integration with PCs for quick data management and comprehensive analysis.
Includes
- GEO Earth Ground Tester
- User’s Manual
- Batteries
- Quick Reference Guide
- USB Cable
- 2 Clamps
- C1620 Professional Carrying Case
- 4 Earth Ground Stakes
- 3 Cable Reels


