Description ACCURACY: This fully featured and powerful laser measurer features long range measuring with extreme accuracy and measures distances up to 165 ft. to within 1/16 inch, for professional confidence EASY-TO-USE: Simple, easy to use one button operation starts by pressing button once to begin measuring; The GLM165-40 is compact enough to fit in any pocket; Features a backlit color display that allows measurements to be easily read, even in dark areas CONVENIENT: Provides default real time measurement that adjusts as you move closer and farther from target, just like a tape measure, plus it has 10 measurement memory to keep track of distances AUTO SQUARE: The Bosch GLM165-40 laser measure includes auto square function to automatically calculate square footage with the push of a button, allowing for fast and correct estimates for material sourcing DURABLE: This robust Laser distance measure is IP54 rated to withstand tough jobsite conditions such as rain or dust, for reliable service and secure confidence The Bosch Blaze Pro GLM165-40 165 Ft. Laser Measure is a fully featured yet simple-to-use tool. It provides an easy-to-read backlit display that illuminates the measurements, and it delivers distance, square footage, volume and indirect measuring functions. It has a 10-measurement storage capability. This measure has addition/subtraction functionality, so the user can add or subtract measurements. The Blaze Pro includes default real-time measurement mode, adjusting the measurement the closer to or further from the target the laser measure is. It has laser precision technology and real-time measurement mode, for instant and reliable measurements up to 165 Ft., to size up the job in seconds. It is accurate up to 1/16 In. It fits in any pocket for easy access. Class IIA laser product, <1mw power output, 635 nm.