Multimeters, Clamps & Component Kits

Digital Multimeters

A digital multimeter is an indispensable tool for testing, diagnosing, and troubleshooting electrical circuits, components and devices and works by measuring two or more electrical values—principally voltage (volts), current (amps) and resistance (ohms). It is a standard diagnostic tool for technicians in the electrical/electronic industries and is a must-have for any toolbox. Digital multimeters long ago replaced needle-based analog meters due to their ability to measure with greater accuracy, reliability and increased impedance.

Things to consider when buying your Digital Multimeter (DMM)

DMM Specifications

• Choose a digital multimeter with a higher main voltage than is required to operate electrical devices that you want to observe the readings for
• It is important not to use the multimeter above the current range it can withstand
• When buying higher-end digital multimeters, check whether it provides the true RMS value

DMM Accuracy

Accuracy is defined as the maximum permissible error limit in the observed readings.

DMM Resolution

DMM Resolution is defined as the number of digits up to which the signal strength can be measured. It is the measurement of the change in the output signal, as a result of the smallest fluctuation made in the input signal.

Input Impedance

If you need to measure more sensitive electronic devices, accurate measurements can be attained by choosing a multimeter with high input impedance

Frequency Measurement

Some DMMs are capable of measuring the frequency and in turn monitoring voltage and current within a frequency range. If your device is powered by steady AC voltage, ensure that it maintains the correct frequency.

Temperature Measurement

If you have frequent temperature monitoring needs, a multimeter with a dual differential temperature function allows you to measure two temperatures simultaneously.