Make sure your job runs smoothly with the right equipment. Use a laser rangefinder to measure the distance between walls. If you want to paint or wallpaper perfectly straight, a cross-line laser is the solution. With a pipe finder, you know exactly where you can and can't drill. Are you going to apply decorative borders, raise floors, or lower ceilings? Choose a 360° line laser. You can use a multimeter if you want to measure electrical voltage, amperage, and resistance.