A clamp meter is a tool that many professionals use as a means of troubleshooting electrical equipment. There are many meters out there, commonly referred to as volt-meters, ohm-meters, or just meters, but the one that is referred to as a clamp meter is commonly called the amp-meter. The amp meter is a multi-meter that can check for voltage in either AC or DC by selecting it on the dial or with the buttons on the device. They can also be used to check ohms and continuity, which can be used to check for shorts or breaks in an electrical circuit. On top of the clamp/amp meter, you will find a claw or hook that is used to check the amperage that is being consumed on an electrical circuit. In order to check the amps that a circuit is pulling, you will need to first set the meter to the amp selection on the front of the meters. This can be done by either rotating a dial or pressing a button that will put it into the mode for reading amperage. Next, you would need to place either the hook or claw around the line voltage side of the circuit, typically where it is coming off of a breaker inside an electrical panel. Once you have done this, you will notice that there will be a number that has shown up on the display, usually including a decimal in it. The number that is displayed is the number of amps that the circuit is pulling. For example; if you have a breaker that keeps tripping out after being on for a while, the clamp meter is the best way to start trouble shooting this issue. If this breaker is in a home, most of the breakers within the panel will be on a 20 amp breaker. If upon checking the circuit with your meter you find that it is either really close to this number or even past this, you can assure that you have too much of a load on this circuit. The standard continual use rating on a breaker is 80% of the capacity. So, a 20 amp breaker should not carry more than an active load of 16 amps. The prices vary depending on brand and options that are available and will run between $50-$200. If you are not comfortable working on live electrical circuits, please educate yourself or consult a professional.

Trouble finding out a good Clamp meter for you? Here are some background check for brands you might not Know other than Fluke

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I did some research on popular cheap testers and scopes present in China.Data at disposal are collected from the largest online shopping platform taobao.com by searching top sellers+the most popular deals.

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by Mischa

It is known to the world about the potentials and prosperous future ahead that e-commerce bears. With decades of development, major products selling online are manufactured day by day in developing countries like China. Thus people might wonder how to find and screen reliable things that best match themselves. Let's take a typical platform in China called Taobao.com which enjoys tremendous sales and exchanges on daily bases. Those who search Clamp meter may notice Chinese brands, copycats  and knockoffs sell hundreds every single month, being popular among their major users; and money wise sometimes Multimeters with a name you never heard of might be better than Flukes regarding their flexibility in function extendibility within a budget friendly frame. Also some of the good for money options for asian market by Fluke indicate similar popularity  as well.

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