The General Tools TS02 ToolSmart Bluetooth-Connected Digital Angle Finder quickly determines the angle of any corner. This tool is especially useful for crown molding and flooring applications to make sure that cuts are perfect every time. The digital angle finder can be used as a standalone instrument, or with General Tools' ToolSmart app running on a smartphone. When used in concert with an iPhone or Android smartphone, the digital angle finder can stream (via Bluetooth) to the phone all measurements it makes. The measurements can then be used to tag photos taken by the phone’s camera. For example, the app can apply angle measurements of structures to blueprints developed as part of a home renovation project.