Our 305mm Digital Measuring Wheel has been designed with efficiency and convenience in mind, giving you the ability to control the tool with one-hand using the handle-mounted buttons and digital display. The backlit screen has an IP54 rating for durability and features a highly intuitive interface. The digital interface allows you to save and store up to four measurements, measure and convert in Metric, Imperial and Engineer Scales, as well as hold and clear measurements with just the touch of a button. The frame telescopes to multiple heights and is easy to store. This MILWAUKEE® Digital Measuring Wheel takes 2 AAA batteries (included).