Signal Generators are used in various industries to create signals that simulate behavior of system. Frequency Counters are instruments for measuring frequency
Spectrum Analyzers measure signal amplitude vs. frequency. RF Field Strength Meters measure RF levels and electric field strength.
The measurement of power and power quality includes basic parameters of voltage, current, watts (kW, VA, VAR) or energy (kVAh, VARh, kWh)
Discontinued Products Gone but Never forgotten.