Feature: 1. Good Function and Battery Powered: Fast measurement, accurate reading, mm level measurement, sensitive response, intelligent voice broadcast. Lithium battery USB fast direct charge, continuous 10,000 measurements. 2. High Accuracy: 2 way horizontal bubble, built in ±0.5°accuracy tilt sensor, can clearly display the real time deviation angle. ±1.5mm measurement accuracy, record and display the maximum and minimum values. 3. Optical Focusing Lens: Imported optical lens, high performance laser module, accurate and stable measurement, fast and low power consumption. 4. Double Photosensitive Apertures: Enhance optical compensation, water accumulation at the core of the phase optical system for distance measurement, enhanced laser emission and reception capabilities. 5. Data Memory Storage: Makes it more convenient to check data; after measuring multiple times, you can check data at any time, up to 99 groups of memory storage. Specification: Item Type: Laser Distance Meter Material: ABS Model: LDM-80C Battery: Rechargeable Lithium Battery 3.7V 1500mAh (Included) Uses: Indoor Home Improvement, Construction, Furniture Basic Parameters: Test Range: 0.05~80m (0.16~262 inches) Measurement Accuracy: Typical Value: ±1.5mm Accuracy Class: II Minimum Value Display: 1mm / 0.04in Unit of Measurement: m, in, ft Laser Safety Standard: Class II Laser Type: 635nm,