Our 12" digital measuring wheel is designed to be the most efficient measuring wheel on the market, giving you the ability to control the tool with one hand due to the handle-mounted buttons and digital display. The backlit display is IP54 rated for durability and features a highly intuitive interface. The digital interface allows you to record and store up to four measurements, measure and convert in Imperial, Metric, and Engineering scales, as well as hold and clear measurements with the push of a button. The multi-height telescope frame and is easy to store. This MILWAUKEE® Digital Measuring Wheel is powered by 2 AAA batteries (included).