Marmonix MEG825 vs MEG725: Which Earth Tester Should You Buy?
Both the Marmonix MEG825 and MEG725 are clamp-on ground testers, but they are built for different jobs. This side-by-side comparison helps you choose the right Marmonix earth tester for your work.
Quick Comparison
| Feature | MEG725 | MEG825 |
|---|---|---|
| Type | Clamp-on ground resistance tester | Multifunction clamp-on ground tester |
| Measures | Ground resistance, leakage & neutral current | Earth resistance, soil resistivity, current, voltage |
| Methods | Stakeless (clamp) | 2/3/4-wire + selective + clamp |
| Connectivity | — | Bluetooth + USB, 2.5″ LCD |
| Best for | Fast routine checks of bonded systems | Versatile testing + data logging |
When to Choose the MEG725
The MEG725 is the fast, focused choice: clamp it on and read ground resistance without disconnecting the electrode or driving stakes. It also reads leakage and neutral currents, making it perfect for routine inspection of multi-grounded systems such as pole and tower grounds.
When to Choose the MEG825
The MEG825 is the do-everything instrument: 2/3/4-wire and selective methods, soil resistivity, current and voltage, plus FFT/AFC accuracy, a 2.5″ LCD, and Bluetooth/USB for logging and reporting. Choose it when you need flexibility and documentation.
The Verdict
For the quickest stakeless routine testing, choose the MEG725. For an all-round tester that also handles soil resistivity, multiple methods, and data logging, choose the MEG825. Still deciding on method vs budget? See our complete earth resistance tester buyer’s guide.