Summary Night Vision:HD LCD backlight display, measurement data at a glance, easy to use in the dark environment. Measurement Modes:3-in-1 measure, roll mode, 300m tape measure and 762m laser measure. The error is as low as 0.01 cm. It can measure all and any surfaces. No longer be confined to the flimsy metal tape measures that can only measure straight surfaces. Roll Mode:The roll mode allows you to measure curves and different objects simply by rolling it across the surface, can measure any curved surface or irregular shaped objects. Tape Measure:Flexible tape design, not easy to injure hands, used in the short distance measurement, such as flat, circular surface, body measurement. Laser Measure:Precision laser head, 762 cm long distance measurement, one key detection, simple operation. Package Included: 1 x 3-in-1 Tape Measure (Battery not included) Note: 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Product Tags Laser