1、[Accurate Result] We changed the traditional single laser tube structure to a double laser tube structure. This technology can effectively reduce the error caused by excessive temperature; the double bubble level helps you to obtain the horizontal direction, thereby obtaining more accurate size. 2、[Multiple Functions] Laser distance measure can measure area, distance, volume, continuous measurement, Pythagorean method. Addition and subtraction mode helps you to obtain calculation results more effectively. Continuous measurement mode can record the large and small value according to your needs. 3、[LCD Backlight] The laser distance measurement can be switched freely, the unit is inch, meter, feet. The large backlit screen allows you to provide better visibility in dark areas, and low battery prompts 4、[Mute Function] The mute function allows you to according to your wishes Turn on or off the measurement buzzer, suitable for use in libraries, classrooms and other places. 5、[Simple to Operate] You can get accurate results within 0.5 seconds, complete your work efficiency. 30 sets of data memory to view measurement records, manually delete data. It will automatically turn off after 3 minutes without any operation to save power. 6、[Scope of Application] A professional laser distance meter is suitable for home use, decoration, large areas such as buildings, factories, warehouses, apartments, etc. Item Type: Laser Distance Measure Material: ABS Color: As Pictures Shown Measurement Accuracy: ±1.5mm Measurement Unit Selection: Meters, Inches, Feet Area and Volume Calculation Method: Yes Pythagorean Theorem Calculation Method: Yes Height Difference: Yes Addition and Subtraction Functions: Yes Continuous Measurement: Yes Storage of Historical Data: Yes Buzzer: yes Battery Type: 2 AAA Batteries (Delivered Without Batteries) Laser Class: Class ll Dustproof and Waterproof Class: Ordinary Civilian Class Working Temperature: 0-40℃ Storage Temperature: -25-70℃ 1 x Laser Distance Measure (Battery Not Included) 1 x Lanyard 1 x Manual