Mileseey&reg; S9 260-Feet Laser Distance Measurer with Backlit Display Measures up to 260-ft (80 m) and accurate to within 1/16-in (1.5 mm) Ingress protection class:Dustproof Level IP5X, Waterproof level IPX4. Measurement:Distance,Area,Volume,Pythagorean measurement for hidden edge & corner Can save the latest 20 sets measured results. With double bubble, makes measuring more accurate