1、WATERPROOF DUSTPROOF ABS: The whole machine is made of industrial grade ABS material, which is waterproof, dustproof, dropproof and shockproof 2、CLEAR DISPLAY WITH HISTORICAL DATA The screen adopts LCD high definition backlit LCD screen, which can read clearly during the day and night, and store 20 sets of historical data for easy reference 3、FLEXIBLE MEASUREMENT：Select the front reference, the measurement distance does not include the body length. Select the rear reference, the measurement distance includes the body length 4、VARIOUS MEASUREMENT METHOD: Support single measurement, area measurement, volume measurement, single Pythagorean theorem measurement, double Pythagorean theorem measurement, continuous measurement, and can be adjusted in turn by pressing the function key 5、BIDIRECTIONAL BUBBLE: There are vertical and horizontal bubbles on laser distance meter to ensure accurate measurement results 6、LASER RANGING: Possess high light transmittance, high refractive index, strong impact resistance, fast curved lens measurement