The Disto X310 is a compact and handy model and has many interesting functions. It is the only model which is dust tight and water jet protected to IP65 in addition it passes the drop test to 2m in height. It is still simple to use providing addition and subtraction, area and volume calculations for rapid and reliable site measurement. Thanks to the integrated tilt sensor, it can take indirect distance and height measurements absolutely precisely. The last 10 results are stored in the system memory. The unit contains the Leica Power Range Technology, Smart Horizontal Mode, 4 line illuminated display, height tracking and 360° tilt sensor. The Multi-function end piece is automatically detected by the system so, when in use, it will take account of this when calculating distances. The system is accurate to +/- 1mm at 120 metres will carry out up to 5000 measures per set of batteries and works from 2 x 1.5 volt AAA batteries.