Leica Disto D2 Laser Distance Meter Compact laser distance meter with Bluetooth® Smart and multifunctional end-piece The smallest laser distance measurer in the Disto range, the Leica DISTO D2 is versatile and ideal for use indoors. The Disto D2 has easy to use keys for subtraction, addition, volume and area calculations. The D2 is very compact, ergonomic and handy making it a capable tool, especially for its size.