Bosch Bluetooth Enabled 330-Foot Lithium-Ion Laser Distance and Angle Measurer GLM 100 C UPGRADES: Features Bluetooth functionality to conveniently transfer and store measurements from the laser measurer to a smart device via free app. Also includes backlit display with tilt-screen technology for easy viewing in all directions. PRECISION: The laser tools Precision Measuring Technology with extreme accuracy measures distances up to 330-feet to within 1/16-inch. ACCURACY: The Bosch GLM 100 C features a built-In tilt sensor to displays 360-degree angle measurements in two axis allowing for more accurate measurements. LEVEL: Option to add the R 60 digital level attachment to transform the GLM 100 C into a 24-Inch digital laser level (not included). VERSATILE: Offers ten measurement modes including length, area, volume, angle, min/max, continuous, single indirect height, single indirect length, combined indirect height, and multi-surface are measurement for maximum versatility. Class IIa laser product, 1mW power output