Specification: Item Type: Digital Display Measuring Wheel Unit: FT, IN, M, CM Maximum Measurement: 100000FT/M Function: MEMORY, UNITS, SAVE, CLEAR, HOLD How to Use: Open the packaging and take out the product to start using Package List: 1 x Measuring Wheel 1 x Storage Bag 1 x User Manual Advantage The measuring wheel is accurate to 0.03 inches and has a backlit display for clear reading even in low light. Multifunctional The measuring wheel has the functions of memory, unit switching, saving, clearing, keeping, easy to operate and improve work efficiency. Intelligent Key Design The digital display measuring wheel has 6 keys to achieve 7 functions, and the unit is used to switch the metric system or the imperial system, which is easy to use. Portability and Durability The digital display measuring wheel is designed to support expansion lengths from 23 to 40, making it easy to carry and use. Large Measuring Range The digital display measuring wheel supports a maximum measuring distance of 100,000 ftm and is suitable for a variety of indoor and outdoor distance measurements.