Operating the pocket-size GLM 15 laser measurer couldn’t be easier: Press one button on to turn it on, press again to record measurements, and press-and-hold the same button to turn it off. The square, flat design works on any surface, and although its $50 price tag means it has a shorter range than more expensive units, the maker says the GLM 15 measures up to 50 feet with 1/8-inch accuracy. boschtools.com
