Megger DLRO200 Digital Low Resistance Ohmmeter
Precision, Power, and Portability – the Benchmark in High-Current Low Resistance Testing
If you need dependable, high-current low-resistance testing, the Megger DLRO200 delivers precision, speed, and durability you can rely on. Designed for professionals in power utilities, industrial maintenance, and electrical contracting, the DLRO200 provides fast and accurate measurement of resistances between 0.1 μΩ and 1 Ω at test currents up to 200 A DC.
Compact and weighing under 15 kg, this robust digital low resistance ohmmeter combines outstanding accuracy with intuitive operation. Whether you’re testing circuit breaker contacts, busbar joints, or welded connections, the Megger DLRO200 ensures reliable results that help you verify equipment integrity and maintain compliance with electrical safety standards.

Megger DLRO200 Key Features:
- Test currents from 10 A to 200 A DC for thorough low-resistance testing.
- Measures from 0.1 μΩ to 1 Ω with an impressive 0.1 μΩ resolution.
- Large, backlit LCD display for clear visibility in all lighting conditions.
- On-board memory for up to 300 test results, with note-taking via the alphanumeric keypad.
- RS232 interface for real-time or batch data download.
- Three test modes – Normal, Auto, and Continuous – for ultimate flexibility.
- Smooth current output eliminates magnetic transients*.
- Built-in safety protection against live circuits and overheating.
*The smooth current feature is model-dependent (specifically confirmed for the 115 V version).
Powerful, User-Friendly Operation
The DLRO200 makes low-resistance testing quick and simple. In Normal Mode, the instrument performs a single controlled measurement in around ten seconds. Auto Mode provides hands-free operation for repetitive tests, while Continuous Mode enables ongoing monitoring of resistance changes over time.
Advanced safety functions prevent testing on energised systems above 10 V, while internal memory allows secure data logging and real-time output. Add notes directly on-site for fast reporting and traceability.
What Comes with the Megger DLRO200?
Every Megger DLRO200 is supplied complete and ready for professional use, including:
- DLRO200 main instrument (factory calibrated).
- 5 m (16.4 ft) test leads set, comprising:
- Two × 50 mm² current leads with heavy-duty spring clamps (60 mm jaw).
- Two × lightweight potential leads with crocodile clips (22 mm jaw).
- RS232 download cable and Megger Download Manager software.
- Quick Start Guide and warranty card.
- Mains power lead (UK, EU, or US type, depending on version).
All versions of the DLRO200 are delivered ready to operate straight out of the box.
Why Choose the Megger DLRO200?
- Proven Megger reliability and UK engineering.
- Lightweight, rugged design for field and workshop use.
- Flexible test modes to suit every application.
- Backed by global Megger calibration and service support.
❓ Frequently Asked Questions (FAQ)
Q1: What applications is the DLRO200 ideal for?
A. It’s perfect for testing circuit breakers, switchgear, busbar joints, cables, and welded connections in substations or industrial facilities.
Q2: What is the maximum test current?
A. The Megger DLRO200 can deliver up to 200 A DC, depending on supply voltage and circuit resistance.
Q3: Can test results be downloaded?
A. Yes – data can be transferred via the RS232 interface or viewed directly on the display.
Q4: Does it store results?
A. It can store up to 300 tests, complete with time, date, and user notes.
Q5: Is the DLRO200 portable?
A. Yes – at under 15 kg, the Megger DLRO200 is compact and easy to carry to site.
Order Your Megger DLRO200 Today
Upgrade your resistance testing accuracy with the trusted Megger DLRO200. Contact our team today for pricing, expert advice, or to request a quotation.
Note: Be sure to check the official datasheet before buying, and the user manual before using any test equipment. Need training? Just reach out - we’re happy to help