Electricians, Technicians, Hobbyists and Tinkerers are all people in need of a good multimeter to test, verify and keep themselves safe around electricity. A good meter can really help you when you find an electrical issue. But how do you find the one that's right for you?
First, nail down what features you need and what your price is. Most meters offer a pretty full feature set, but be sure to define a few things.
You need to decide how much power your meter needs to be rated for, or else you will blow the fuse constantly if you work with high-power. I personally meter up to 400 amps on a daily basis at 208 volts, so I got a meter with 1000 amp protection. I would suggest you guess high on this one! Besides AC amps, you also need to figure out the max amount of DC amps, ohms and AC/DC volts you'll meter. It is important to always have a good, working meter, unlike my first meter that smoked at the thought of 208 volt AC power. Again, aim high!
Other features to look for include the continuity buzzer, clamp for amp metering and frequency metering. These are optional and may or may not be a big help to you. You need to figure out what is right and what your needs are. Ask friends and coworkers if they use these features or if they think the features are worth the additional cost.
Always evaluate price and durability when buying. You will see meters all the way from $5-$300 and above, so be prepared with the feature set you desire. Remember that what you are buying is a quality tool, and it will last you for decades if purchased wisely.
Brand names are not necessarily better, but will be guaranteed against breakage, so keep that in mind. Know that the Fluke brand is the top meter, and is near unbreakable.
Having a great electricial multimeter can help you in your career and your hobbies. Always be safe when working with electricity and be sure to never do anything you don't fully understand!