Features： 1、The laser rangefinder has a measuring range of 0.05?40m with high measuring accuracy. 2、With non?slip stripe on the side to increase friction, comfortable to hold and easy to operate. 3、The high?definition large screen design can clearly display the ranging results. 4、Suitable for large areas measurement such as rooms, apartments, buildings, factories, warehouses, etc. 5、Comfortable buttons design, high sensitivity, with hanging rope, lightweight and easy to carry. Specification： Item Type: Distance Meter Material: ABS Purpose: Laser Ranging Battery Attributes: 2 x 1.5V AAA Battery (Battery Not Included) Measuring Range: 0.05-40m / 0.2-131.2ft Measurement Accuracy: ± 2mm Laser Type: 620-690nm ＜1mw Operating Temperature Range: 0℃-40℃ Storage Temperature: -20-70℃ Automatic Laser Shutdown: 30 Seconds Automatic Power Off: 3 Minutes Weight: Approx. 152g / 5.4oz Basic Functions: Addition and subtraction of the Pythagorean theorem, maximum and minimum measurement of tracking measurement, backlight, buzzer prompt, data removal, area and volume measurement How to Use: 1. Insert the battery (not included), turn on the switch 2. Select by function 3. Complete ranging 4. Data storage Package List： 1 x Distance Meter (Battery Not Included) 1 x Hanging Rope 1 x Manual