The leica disto x310 guarantees reliable measurements even under the harshest conditions it is dust tight and protected against water jets to ip 65 in addition it passes drop tests of up to 2m in height thanks to being protected by solid rubber the integrated tilt sensor allows accurate reporting of angles and gradients without taking measurements the disto x310 also uses the tilt sensor to take indirect distance and height measurements precisely by using pythagoras function or by incorporatin