Chances are you spent time today poking into a circuit with two hands and then craning your neck over looking over at a multimeter display, which causes you to slip and lose your spot. OK well at least we had to do that, and that's when we decided it was time to pick up one of these pen-style digital multimeters. It's small and light but has a full featured multimeter inside. The ground probe is actually a wired clamp (it has a nice sharp tip or you can grab onto a ground wire). So you can just poke around with one hand and see the values instantly.

Comes in a nice padded case and has a nifty retractable tip so you won't accidentally stab something in your toolkit. Powered by 2 x AAA batteries, included.

Autoranging Digital Multimeter Pen (4:37)