Features: 1Three In One Functionality: Our 3 in 1 infrared laser tape measure combines a laser distance meter, a 5 meter tape measure, and a laser cross marking tool. With just a simple press of a button, you can easily measure high ceilings and other hard to measure areas. 2Self Locking Mechanism: This laser tape measure features a self locking mechanism for the laser line, automatically locking its position after extending the tape. Simply press the unlock button to retract it automatically. 3Accurate Measurements: This is a precise infrared laser measuring tape with an accuracy of 1.5mm for the tape measure and 2mm for the digital measurements, use at ease. 4Wide Applications: The infrared laser tape measure can be used for measuring levelness, installation of construction equipment, precise testing, bearing measurements, automation inspections, and more. 5Essential Tool: Tape measures are widely used in residential or commercial projects. Whether you are a DIY enthusiast or a professional crafts man, it is the perfect measuring tool. Specification: Item Type: Digital Laser Tape MeasureMaterial: ABSWeight: Approx. 368.00g/12.98ozProduct Size: Approx. 8.5x7.5x4.3cm/3.3x3.0x1.7inBattery: 18650 lithium battery, 180mAh (shipped with built in battery) Package List: 1 xDigital Laser Tape Measure1 x Accessory1 x Instruction Manual