The Schumacher SchuLink SDT1 Wireless Scan Tool with Battery Tester Module is powered by lithium ion batteries and provides a 10' wireless range. The controller features a 7" high resolution touchscreen, the SchuLink app, embedded on-screen video training and the user manual. Test results are delivered on-screen, or via text or email if connected to a wireless network. This rugged tool is durable for shop use, and the tester and clamps store neatly at the back of the unit when not in use.