This laser tape measure includes two mode-165FT/50M laser measurement and 16.5FT tape measurement.laser measurement accuracy: +/- 2mm ,and the accuracy of laser measurement can be checked with a tape measure. Laser tape measure has IP54 conservation function, anti-fall, can be used in most scenarios, a very cost-effective product. Features: HIGH PRECISIONLaser measurement accuracy: +/- 2mm. Simple operation, press "ON" to turn on, press again to start laser measurement. Long press "ON" for about two seconds to perform continuous measurement, and the accurate distance can be read within the effective range while moving. Class II laser production<1mW power output. 2-in-1 MEASUREThis laser tape measure includes three mode- 165ft/50m laser measure, 16ft/5m tape measure. Long press the "Unit" button of this laser measuring tape to switch units freely between M / In / Ft. TAPE AUTOMATICALLY LOCKEDTape will automatically locked the position after pulled out, just press the orange button to auto rebound. The net weight of the tape measure: 253g, very light and convenient, only equivalent to the weight of a mobile phone, and you can easily carry it anywhere with a wrist strap and belt clip. LED BACKLIGHT SCREEN & DATA STORAGEBigger LED-backlight screen helps you read laser ranging numbers clearly even in direct sunlight or dark environment; Store up to 20 measurements, laser tape measure auto-off to save energy. MULTI-FUNCTION MODE Digital laser tape measure for area measurement, volume measurement, pythagorean measurement, double pythagorean measurement and cross laser line to satisfy your all needs. Specifications: Plug: EU / US (Optional) Material: ABS+TPR+Metal Color: Black Laser Measure: 165Ft/50M Measuring Tape: 16.5Ft/5M Laser Measurement Accuracy: +/- 2mm Measuring Tape: EU&UK metric; US: imperial units Item Size: 75 * 50 * 73mm / 2.95 * 1.97 * 2.87in Item Weight: 253g / 8.92oz Package Weight: 322g / 11.35oz Package Size: 13 * 15.5 * 5.5cm / 5.12 * 6.10 * 2.17in Package List: 1 * Laser Tape Measure 1 * Type-C Charging Cable 1 * User Manual (English)