Electronic Level Control Function: With the Electronic Level Control Function ,the angle of the inclination will display on the screen, which provides more precise measurement;With laser precision technology, accuracy ups to ±2mm, measuring distance extends to 50m; Switchable among M/In/Ft/In+Ft for free adjustment LCD BACKLIGHT & MUTE SETTING: Large backlight screen provides you with a better visibility in dark areas; Mute setting allows you turn on or off the measure beep at your will, suitable for using in library, classroom and other quite places,the laser level is ideal for home, construction and industries, especially in large areas such as rooms, apartments, buildings, real estates, factories, warehouses, etc VERSATILITY: Angel(optional), area, distance, length, volume, continuous measurement, Pythagorean method-three points; Addition and subtraction; Low battery indication; 20 groups data memory; Manually delete data; Auto shut down after 150s without any operation to save power DURABLE AND PORTABLE DESIGN: IP54 waterproof level and dust-proof function protect the laser distance measure to the maximum extent; Portable size and hard rubber body provide a good grip; Wrist strap lets you hold the meter steady and carry easily Maximum measuring range:=50m unit of measurement:m/ft/in/ft+in Historical measurement record:30 groups Laser level:Class2 operating temperature:0°C-+40°C Laser type:630-670nm,Less than 1mw Storage temperature:-10°C-+60°C (The product appearance and printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: ABS Package Contents: 1 * Laser Distance Meter