A Clamp Meter combines a current clamp with the basic functions of a digital multimeter, also called DMM. Clamp the "jaw" around a conductor to measure current.
A Decade Box houses several precision resistors, capacitors, or coils organized in decades of ten
Micro-Ohmmeters, Milliohmmeters, and Megohmmeters measure resistance in different ranges and applications
The measurement of power and power quality includes basic parameters of voltage, current, watts (kW, VA, VAR) or energy (kVAh, VARh, kWh)