Recommend for engineers, fabricators, designers, and students who like to try with the slick tape measuring feelings. You can verify the input lengths before performing super fast calculations. It is a great tool especially for aluminum framing fabrication.

Two videos show exactly how smooth and how fast the calculations.

Features:
1. no more digits input keys.
2. continuous calculating methods.
3. has 6 output formats. (3 for Imperial, and 3 for Metric)
4. has 6 levels accuracy levels.
5. results can be emailed.