1The laser rangefinder has a measuring range of 0.0540m with high measuring accuracy. 2With nonslip stripe on the side to increase friction, comfortable to hold and easy to operate. 3The highdefinition large screen design can clearly display the ranging results. 4Suitable for large areas measurement such as rooms, apartments, buildings, factories, warehouses, etc. 5Comfortable buttons design, high sensitivity, with hanging rope, lightweight and easy to carry. 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 1 x Distance Meter (Battery Not Included) 1 x Hanging Rope 1 x Manual