Ohmmeter vs Multimeter – Which One Best!

Ohmmeter vs Multimeter

There has been a long-running dispute between hordes of multimeter enthusiasts that has taken up a lot of Internet time lately. And all for the wrong reasons. The kerfuffle has brought to light that multimeters measure voltage, current, and resistance – a tidbit of information for those unfamiliar with the subject. Generally, multimeters can be … Read more

What Does An Anemometer Measure

what does an anemometer measure

An anemometer is a device that measures the speed of gases, either in confined or unconfined flows, such as airflow in a duct or wind in the atmosphere. The anemometer determines the velocity of a flow by measuring changes in the flow’s physical properties or by detecting an effect of the flow on a mechanical … Read more

What Do EMF Meters Measure

What Do EMF Meters Measure

The electromagnetic fields (EMF) and electromagnetic radiation (EMR), also known as radio frequency (RF), are of great concern to many people.  A lot of people want to know how to measure electromagnetic fields. In fact, some people are so enamored with the idea that they buy detectors and meters and study their own properties and … Read more

How to Use a Non Contact Voltage Tester

how to use a non contact voltage tester

Non-contact voltage testers provide the safest way to make sure the power has been turned off without touching any cables. When you open an electrical box, you should:   -cut the power to the outlet at the main electrical panel   – make sure you turned off the correct circuit Non-contact voltage testers can be useful for … Read more

Transistor Tester How to Work

Transistor Tester How to Work

Digital multimeters today have a specific capability for testing diodes, for instance, but analog multimeters that are still prevalent do not. In spite of this, it is quite easy to perform a simple go/no-go test using the simplest of equipment. Transistors and diodes can be tested for functionality using this technique, but there is no … Read more

Is electrical tape heat resistant?

Is electrical tape heat resistant

The electrical industry today is much more advanced than it was a century ago. Every technician should be familiar with how to use the gadgets in their tool box. A leaky pipe or frayed wire may need a quick fix on the job if you are working on a building or warehouse. Electricians’ best friends … Read more

How to Use a Laser Level

How to Use a Laser Level

From Johnson Level, you can choose from a wide variety of different laser levels. Depending on the length of the project, we are able to provide you with a variety of different options. Working outside? A laser outside can be difficult to see, if not impossible, with just the naked eye. Thankfully, most modern laser levels … Read more