| Name |
Purpose |
| Ammeter (Ampermeter) |
Measures current |
| Capacitance meter |
Measures the capacitance component |
| Current clamp |
Measures current without physical connection |
| Curve tracer |
Applies swept signals to a device and allows display of the response |
| Cos Phi Meter |
Measures the power factor |
| Distortionmeter |
Measures the distortion added to a circuit |
| Electricity meter |
Measures the amount of energy dissipated |
| ESR meter |
Measures the equivalent series resistance of capacitors |
| Frequency counter |
Measures the frequency of the current |
| Leakage tester |
Measures leakage across the plates of a capacitor |
| LCR meter |
Measures the inductance, capacitance and resistance of a component |
| Megger tester |
Measures Resistance of an Winding of Motor or Generator And Measures Earthing's Resistance |
| Microwave power meter |
Measures power at microwave frequencies |
| Multimeter |
General purpose instrument measures voltage, current and resistance (and sometimes other quantities as well) |
| Network analyzer |
Measures network parameters |
| Ohmmeter |
Measures the resistance of a component |
| Oscilloscope |
Displays waveform of a signal, allows measurement of frequency, timing, peak excursion, offset, ... |
| Psophometer |
Measures AF signal level and noise |
| Q meter |
Measures Q factor of the RF circuits |
| Tachometer |
Measures speed of motors |
| Signal analyzer |
Measures both the amplitude and the modulation of a RF signal |
| Signal generator |
Generates signals for testing purposes |
| Spectrum analyser |
Displays frequency spectrum |
| Sweep generator |
Creates constant-amplitude variable frequency sine waves to test frequency response |
| Transistor tester |
Tests transistors |
| Tube tester |
Tests vacuum tubes (triode, tetrode etc.) |
| Wattmeter |
Measures power in a circuit |
| Vectorscope |
Displays the phase of the colors in color TV |
| Video signal generator |
Generates video signal for testing purposes |
| Voltmeter |
Measures the potential difference between two points in a circuit. (Includes: DVM and VTVM) |
| VU meter |
Measures the level of AF signals in Volume units |
| Cathode Ray Oscilloscope (CRO) |
Check transistor |