Features: 1High Accuracy Measurement: The digital laser distance meter provides accurate 2mm error measurements, ensuring highly precise in your calculations, practical to use. 2Efficient Data Storage: The laser measure features a 635nm laser type with <1mW, ensuring safety and reliability, and has a maximum storage capacity of 30 units for convenient data recording. 3Energy Saving Functionality: With an automatic power off within 20 seconds and a 150 second auto shutdown feature, this laser measure helps conserve energy, ensuring long lasting use. 4Battery Operated: This laser measure is compatible with 2 AAA dry batteries (not included), allowing you to easily replace them whenever needed, ensuring uninterrupted measurement capabilities. 5Wide Applications: The laser measurement tool is ideal for indoor decoration, apartments, buildings, factories, warehouses, construction projects, and industrial use. Specification: Item Type: Laser MeasureMaterial: PlasticWeight: Approx. 159.00g/5.61ozBattery: 2 x AAA Dry Batteries (Not Included)Measurement Accuracy: 2mmMaximum Storage: 30 UnitsLaser Type: 635nm, <1mWAuto Power Off: 20sAuto Shutdown: 150s Package List: 1 x Laser Measure1 x Instruction Manual1 x Hanging Rope1 x Storage Bag