Digital Clamp Meter

Digital Clamp Meter

Clamp meters are one of my favorite measurement tools for two reasons. The first reason is that they are direct application of Ampere’s Law. Andre-Marie Ampere was a French physicist who laid very important foundations of electrodynamics, specifically about how electric currents produce magnetic fields. Many people learn about Ampere’s Law, but don’t ever directly see its implications. The second reason is clamp meters allow you to take current measurements without physically tapping into the current carrying line. All you have to do is clamp the meter around the line to get a reading.

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Digital Multimeter

Digital Multimeter

Multimeters are very handy because they incorporate multiple measurement tools into one appliance. Generally, a multimeter is capable of measuring AC and DC voltages and currents. Resistance and power are functions of voltage and current, so often times a multimeter can also report resistance and power readings. Multimeters are a very fundamental tool for electricians, so they are very common and can be acquired for a reasonable price.

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Cable Tester

Cable Tester

A cable tester is used to determine where a cable is going and whether or not and where the cable is interrupted. This type of device is commonly used in network troubleshooting. You can find affordable cable testers on the Internet, if you know where to look.

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