HIGHER ACCURACY: The indicator is used to measure reference mark/battery level/buzzer indication/signal strength. Our product can quickly measure distance, area, and volume. The measuring range is 30 meters, and the accuracy can reach ±3 mm. BETTER USE: The convenient and compact design offers an excellent portable user experience. The backlit LCD screen is clear, and you can easily read the data. The bright laser pointer easily aims at the target. MULTIPLE MEASUREMENT MODES: There are multiple measurement modes. These include distance/area/volume/single/Max/Min/continuous measurement and 3 types of indirect measurement using the Pythagorean theorem. Comes with a wrist strap and a portable design, making it convenient to carry. VARIOUS SETTINGS: There are 3 units of measurement: m/inch/foot. Our product also comes with a buzzer indicator. With manual shutdown, a 45-second automatic shutdown after no use, and a 15-second automatic laser shutdown function, our product is easy to use. WIDE APPLICATION: Our product can be used in construction and industry, especially in large areas such as rooms, apartments, buildings, real estate, factories, warehouses, etc.