Here is a smart gadget that combines with your phone to let you easily record angles and inclines. The SOLA GO! Smart has a magnetic design. It is compact enough to fit in your pocket and sends data to your phone in real-time. Simply download the SOLA Measures app to start viewing readings.
This gadget has a switchable display that can show values in degrees, %, mm/m and in/ft. It rotates automatically for inverted measurements. It is also backlit.