But not [John Duffy]. Deciding nothing but perfection would do, he took every favorite feature he’d ever run into while using other multimeters and combined them into his scratch-built HydraMeter.

We earn commissions from purchases you make using links in our articles. Learn more. Anyone who works on their car should have a multimeter, but they come in handy around the house too.

Keeping one in your car's trunk means you don't have to rely on a passing traveler with a pair of jumper cables.

There's a surprisingly wide selection of electrical outlets available to homeowners, so let's explore the seven most common ...

SP INTERNATIONAL Tecpel DMM-139 digital multimeter provides high reliability, modern design, ease of use and overall functionality. The complete series is equipped with a true-rms measurement function ...

A man opened an abandoned suitcase he found by a creek near his home in Texas and discovered a random mix of items inside.

The Meakest Soldering Iron is powered by a standard 110-volt AC outlet with a US plug and boasts a 60-watt rating. It heats ...

you should never attempt it unless you confirm that the circuit breaker is off using a multimeter or receptacle tester. Just because outlets are in the same room doesn't mean they're on the same ...

Scientists in China have used ground heat exchangers based on volcanic tuff stones to improve storage capabilities and efficiency of photovoltaic-thermal systems. Their experiments showed that the ...