The Fluke 61 Infrared Thermometer, -0-525°F Range, 8:1 Ratio is the ideal tool for measuring surface temperatures of rotating, hard-to-reach, electrically live, or dangerously hot targets. For preventative maintenance tasks, the Fluke 61 will cut measurement time to almost zero with the ability to take a temperature reading in less than one second. Targeting objects is easy with a bright laser beam; even in the dark, it is easy to read with its backlit screen.