Feature:1. Multi Functionality: Featuring 6 buttons with 7 functions, this digital measuring wheel allows for seamless unit switching, data storage, accuracy hold, clear, reset, and power, backlight control, providing versatility for professionals.2. High Accuracy: Uncommonly high accuracy of up to 0.03, this digital measuring wheel supports measurements in FT, IN, M, CM, catering to the needs of accuracy focused individuals and professionals.3. Portable Durability: With a retractable length ranging from 23IN to 40IN, compacting down to 23 inches for convenient storage in the included backpack. All buttons are IP54 waterproof and dustproof, designed for durability with a usage limit of up to 1 million clicks.4. Versatile Applications: Ideal for various indoor and outdoor projects, this rolling measuring wheel is an ideal choice for appraisers, law enforcement officers, construction workers, landscapers, and homeowners. It is also suitable for crime scene investigators and other measurement professionals.5. Fun Measurement Process: Whether for individual or industrial use, measuring straight lines and curves is made easy. Simply walk to measure distances of any kind with this sturdy and lightweight measuring wheel. The enjoyable and straightforward process of using this wheeled measuring device makes it an excellent tool for a range of measurement tasks.Specification:Item Type: Measuring Wheel Material: Aluminum Alloy, ABS Unit: FT, IN, M, CMMaximum Measurement: Approx. 100,000ft/30480mFunction: MEMORY, UNITS, SAVE, CLEAR, HOLDBattery: 2 x AAA Alkaline Batteries (batteries not included).Package List:1 x Measuring Wheel1 x Storage Bag1 x User Manual