Brand
NDB Technologies
NDB Technologies builds low resistance measurement instruments, and the product here is a microohmmeter reading from 0.01 microohm.
Four-wire Kelvin connection is what makes measurement at this level possible, since lead resistance would otherwise dominate. Test current decides the application, with higher currents used for circuit breaker contact resistance to reproduce service conditions.
The NDB Technologies DRM-10A is a portable micro-ohmmeter for precise low-resistance measurements from 0.01 µΩ to 200 Ω. Featuring automatic current adjustment up to 10A, four-point measurement, and a shock-resistant design, it’s ideal for field and lab use.