The Sonel MMR-6700 Microohmmeter is a precision low-resistance tester designed for UK electrical engineers, commissioning teams and maintenance technicians who need accurate measurement of contact, winding and bonding resistance in high-power systems.
Delivering a test current up to 200 A DC, the MMR-6700 provides fast, stable and repeatable readings, essential for diagnosing faults in transformers, motors, switchgear and welded joints. Its large colour display, data memory and PC connectivity make it an advanced tool for industrial inspection, service and quality assurance work.
How does the MMR-6700 support professional testing?
The MMR-6700 combines high output current with intuitive control and advanced data logging, giving engineers confidence in critical resistance measurements. Its lightweight, portable design and quick-connect terminals make field testing efficient while maintaining laboratory-grade accuracy.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
Power Supply: Internal rechargeable battery or mains
Interface: USB and Bluetooth
Memory: Up to 10,000 results
Display: Colour TFT 4.3"
Operating Temperature: –10 °C to +50 °C
Weight: Approx. 7 kg
Why choose Instrotech for your electrical test equipment?
With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:
Free UK shipping on all orders
Access to our knowledgeable technical support team
Available calibration services to maintain safety compliance
A 90-day money-back guarantee for complete peace of mind
We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.
