Descriptions:  This Laser Distance Measure employs laser technology to measure distance, area and volume accurately, quickly and conveniently. It has a wide measuring range 40m high accuracy up to plusmn 2mm. In addition, this meter can use of Pythagorean indirect measure distances or lengths. This portable laser distance meter with palm size, it also has various functions including continuous measurement, addition/subtraction function and Max/Min measurement. Other main features are including 4 data memories, switchable units (meter, inch & feet) & back light LCD with multi-line display.This accurate distance meter can be used for home, architecture, industry, house, warehouses, etc.     Features:  Multifunctional, measures distance, area and volume accurately, quickly and conveniently.  Wide measuring range 40M with a high accuracy up to ±2mm, accurate and efficient.  20 data memories, allows to check the most recent measurement freely.  Switchable among meter (m), inch (in), feet (ft), convenient to read the measuring results.  Reinforced shell is dustproof and IP54 waterproof, can be used in the outdoor environment.  Large LCD with backlight, help to see the date clearly in low-light conditions.  Handheld design makes it portable and lightweight to take for measuring.  Widely used in interior decoration, indoor design, construction field.     Specifications:  Color: black.  Measuring Range: 0.05-40m (0.16-131ft).  Material: ABS.  Measuring Time: 0.1-3s.  Display: LCD with Backlight.  Accuracy: ±2mm.  Measurement Unit: m / in / ft.  Laser Class: Class II.  Laser Wavelength: 635nm.  Laser Output: <1mW.  Water-proof and dust-proof grade: IP54.  Laser Auto Off: 30s.  Power Auto Off: 480s.  Measurement Reference Switch: Yes.  Power: rechargeable lithium battery(200mAh).  Operation Temperature: 0~40℃ / 32~104℉.  Storage Temperature: -20~60℃ / -4~140℉.  Item Size: 100 * 32 * 12mm / 3.94 * 1.26 * 0.47in (L * W * H).  Package Size: 135 * 70 * 35mm / 5.31 * 2.76 * 1.38in (L * W * H).  Item Weight: 30g / 1.06oz.  Package Weight: 102g / 3.60oz.  Note: there is a mistake description in the manual ,the power of this Laser Rangefinder is built-in rechargeable lithium battery(200mAh),not AAA battery.     Package Includes:  1 * Distance Meter.  1 * USB Cable.  1 * User Manual(Chinese + English).  New Arrival Laser Rangefinder matte aluminum alloy, better appearance,more color and range available.