A multimeter combines in one unit several measurement functions such as voltage, current and resistance. Digital multimeters (DMMs) are generally more accurate and easier to read than their analog counterparts. While analog multimeters indicate the value with a needle over a scale, a digital multimeter has an LED or LCD display. A digital multimeter can be a hand-held device for field work or a bench instrument which can measure to a very high degree of accuracy. DMMs offer a variety of measurements. Most include the basic measurements of current (DC and AC), voltage (DC and AC), and resistance. Additional measurements offered by most DMMs include capacitance, temperature, frequency, transistor test, and continuity.
Function generators and synthesizers produce various electrical waveforms over a wide range of frequencies. They are used in development, testing, and repair of electronic devices. In a device under test, function generators and synthesizers provide stable and repeatable stimulus signals to analyze the response of circuits. An arbitrary waveform generator (AWG) is an advanced function generator that uses direct digital synthesis (DDS) to generate waveforms.
Test equipment support and enhance the performance of test instruments. A wide range of test equipment accessories are available, including clips, connectors, leads, and probes, as well as instrument holsters and cases, fuses, and power cords and adapters.