The growing number of plug-in electric cars, and also hybrids, as well as expanding solar market, leads to the topic of how emergency responders will be able to detect high DC voltage. One of the ...

When working around mains voltages, it can be useful to know whether a given circuit is live or not. While this can be done by direct connection with a multimeter, non-contact methods are available ...

All three models in the 300 Series of digital multimeters from Extech feature a built-in noncontact AC voltage detector with a red LED indicator and audible beeper to allow you to quickly check for ...