Mainly, a multi-meter is used to measure the electrical potential across something. In this mode, multi-meter is known as voltmeter and the readings are measured in volts. Other modes of multi-meter are amp-mater and ohm-meter. In case of an ohm meter, it measures the electrical resistance and the readings are measured in ohms. In case of an amp-meter, it is used to measure the electric current across something.
Nowadays, there are multi-meters out in the market that can measure the temperature and can work as continuity testers as well. A multi-meter with hard plastic covering is considered the best. The reason for this is that it can sustain the rough conditions and can last for years.
The first impression of a nice multi-meter is that it comes with a strong plastic case making it tough and durable. A digital multi-meter also has an LCD screen for displaying the readings. Choose the screen size according to connivance so that you do not find it difficult to read the readings.
Below the LCD screen, you will find a large rotating knob. This knob is known as the function knob. This knob is used to change the modes of the multi-meter such as amp-meter, voltmeter etc. This knob should be simple enough to be operated by even an amateur.
Opt for the multi-meter that has got crocodile clips along with the normal probes. These crocodile clips hold on to the device or socket that you are measuring. In normal probes case, you have to hold the probes to the product you are measuring throughout the entire experiment.
Auto turn-off feature is an added advantage for any multi-meter. Auto turn ensures switching-off of the device when it is not in use for a long time.
A multi-meter can be purchased from any of the electrical equipments store. Nowadays, it is also available on the Internet and you can easily purchase it online.
A digital multi-meter in the home is extremely useful and convenient. With it, you can test your batteries, test fuses and can perform many other things. It is a useful and must tool for every home nowadays.
Scott Rodgers is a fine author who has been authoring on electricians contents for a long time now. His exemplary guidance has given motivation to a host of workers, ranging from Marble Hill Electricians to Wellesley Electricians.