Features: *Mini & portable High accuracy and wide measuring range up to 40m *Quick measurement of distance, area and volume with one button operation. *Automatic calculation of area and volume. *Indirect measurement by Pythagorean theorem. *Min/Max distance tracking (display value). Easy addition/subtraction of measurement. *Switchable among metre (m), inch (in),feet (ft). *Easy targeting with bright laser pointer. *Large LCD with backlight. *20 data records and recall function. *Bubble level equipped as a spirit level tool. *Low battery indication.(Battery is not included),Automatic / manual power off function. *IP54 protection (dust & splash proof).Compact and handheld design, portable and convenient. *Widely used in construction and industries, especially in large areas such as rooms, apartments, buildings, real estates, factories, Specifications： Color:Green Distance measurement precision: ±3mm Measurement unit options: M/in/ft Single/Continuous measurement function: YES Area measurement function: YES Volume measurement function: YES Pythagorean proposition measurement function: Full Mode Add and subtract measurement function: YES Min/Max value: YES Data store/ recall function: YES Max storage: 40m-20 units Automatic backlight: YES Protection Classification: IP54 Buttons/Keys sound: YES Laser level: II Laser type: 635nm, <1mW Cut off the laser automatically: 15s Auto Power -Off: 45s Maximum Battery Life: 15000 times Storage temperature: -20~60°C / -4~140°F Working temperature: 0~40°C / 32~104°F Battery: 1.5V 2 * AAA alkaline batteries (Battery is not included) Packaging includes： 1*Laser Distance Meter 1*Portable pouch 1*Hanging rope 1*User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.