Multimeter
Alternatively called a circuit analyzer, multitester, or VOM (Volt-Ohm Milliammeter), a multimeter is a device used to test and measure current, voltage, and resistance. The picture shows an example of a digital multimeter. The multimeter connects to a circuit using two (red and black/positive and negative) probes.
Before testing any electrical component with a multimeter, properly ground the system and yourself. Leave the device plugged into an electrical wall socket if the outlet is grounded.
Where can I buy a multimeter?
Below is an affiliate link with Amazon to get a multimeter and support Computer Hope. If Amazon isn't available in your area, we also have a link to other places to buy computer parts.
Computer acronyms, Electronics terms, Measurements, Power terms, TLA, Tools, Wattmeter