1、Large Capacity Battery: Lithium battery USB extremely fast direct charge, continuous 10,000 measurements. 2、Imported Optical Focusing Lens: Imported optical lens, high performance laser module, accurate and stable measurement, fast and low power consumption. 3、Fast Measurement: Accurate reading, millimeter level measurement, sensitive response, intelligent voice broadcast. 4、Data Memory Storage: It is more convenient to look up data; after multiple measurements, data can be consulted at any time, up to 99 groups of memory storage. 5、Dual Stability Maintenance: The horizontal and vertical axes of the horizontal and vertical axes are two way horizontal bubble, and the built in inclination sensor with ±0.5° accuracy can clearly and intuitively display the real time deviation angle, and easily find the angle. Item Type: Laser Rangefinder Material: ABS Model: LDM-120C Battery: Rechargeable Lithium Battery 3.7V 1500mAh (Built in Battery) Uses: Indoor Home Improvement, Construction, Furniture Basic Parameters: Test Range: 0.05~120m / 0.16~394ft Measurement Accuracy: Typical Value: ±1.5mm / 0.06in Accuracy Class: II Minimum Value Display: 1mm / 0.04in Unit of Measurement: M, In, Ft Laser Safety Standard: Class II Laser Type: 635nm, <1mW Laser Beam Diameter (B): 9mm / 0.4in(at a Distance of 10 Meters) 45mm / 1.8in(at a Distance of 50 Meters) Inclination Sensor Range: ±90° Accuracy of Tilt Sensor: ±0.5° (with Laser Beam) (C) Standard Deviation: ±0.5° (with the Shell) (C) 1 x Laser Rangefinder 1 x USB Data Cable 1 x Lanyard 1 x User Manual