Common test instruments
Digital multimeters
Frequency meters
LRC meters (inductance, resistance, capacitance)
Oscilloscopes
Precision voltmeters
Precision ammeters
Precision ohmmeters
Source meters
Test probes
Advanced test instruments
Correlators
Lock-in amplifiers
Signal averagers
Spectrum analyzers
Transient recorders
Vector network analyzers
Power supplies
DC
AC
Operational
High-voltage
Signal generators
Arbitrary waveform generators
Audio sine wave generators
Frequency synthesizers
Function generators
Pulse generators
Microwave sine wave generators
RF sine wave generators
Signal pre-amplifiers