Code readers are diagnostic tools that every car owner should consider owning. Having one of these is as important as carrying a spare tire or a fire extinguisher in the trunk. Back in the day, before ...

While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...

Odds are that your devices are wasting more energy and costing you more money than you're aware. A simple tool called a Kill a Watt meter can help find the offenders in your outlets. Eric Mack has ...