We stock a wide range of multimeters.
A multimeter, also known as a multitester or VOM (volt-ohm-milliammeter), is a versatile electronic measuring instrument used to measure several electrical quantities such as voltage, current, and resistance. It is a common tool used by electricians, technicians, and hobbyists for various electrical and electronic troubleshooting tasks.
Multimeters typically consist of a digital or analog display, a dial or selector switch for selecting the desired measurement function (e.g., voltage, current, resistance), and two probes that are connected to the device or circuit being tested. The probes are usually color-coded, with the red probe representing the positive or "hot" lead, and the black probe representing the negative or "common" lead.
Here are some common functions and measurements that can be performed with a multimeter:
- Voltage Measurement: A multimeter can measure both AC (alternating current) and DC (direct current) voltages. It allows you to measure the voltage across a component or between two points in an electrical circuit.
- Current Measurement: Multimeters can measure both AC and DC currents. They typically have different current measurement ranges to handle various current levels. To measure current, the multimeter is inserted in series with the circuit, effectively becoming part of the current path.
- Resistance Measurement: Multimeters can measure the resistance of resistors, components, or entire circuits. This function is particularly useful for identifying faulty components or determining the resistance value of a resistor.
- Continuity Testing: This feature allows you to check if there is a complete path (continuity) between two points in a circuit. It is commonly used to identify broken wires or faulty connections.
- Diode Testing: Multimeters often have a diode testing function, which allows you to check the forward voltage drop of a diode and determine if it is functioning properly.
- Capacitance Measurement: Some multimeters can measure the capacitance of capacitors. This feature is useful for identifying faulty or damaged capacitors or verifying the value of a capacitor.