Summary: Short version: This device was unable to detect a bad power supply. Long version: I was having crashy problems with my computer under high-load conditions. It smelled of a power supply problem, but I couldn't really pin it down.
Summary: This is a pretty well made tester for the price. Especially if you compare it to some of the same priced testers, that come with cheap plastic parts. Get this Dr. Power II and you won't be sorry!
Summary: This is by far one of the best purchases I've made. This is a vital tool to test a new/old power supply to make sure it works before or to troubleshoot if you think your PSU is causing you issues. The ports are easy identifiable and also have labels.
Summary: Works great for testing suspect PSUs computers. Blue display shows all the relevant voltages on the different rails. Great feature: the display changes from blue to a lurid red color if one of the voltages goes out of kilter.