You can measure the length, angle, distance, height, direction.
Smart Tools is a toolbox of a collection of 1-4 series. It includes 4 Pro versions that have 14 tools. In a word, All-in-One.
Part 1. Length, Angle, Slope : Smart Ruler & Protractor Pro
Part 2. Distance, Height, Width, Area : Smart Measure Pro
Part 3. Direction, Metal detector, GPS : Smart Compass Pro
Part 4. Sound level meter, Vibrometer : Sound Meter & Vibration Pro
For more description, see the manual for each of the apps and visit the blog. http://androidboy1.blogspot.com/
Do you want to have more features and tools? Feel free to contact me. I'll reply it ASAP. I hope my apps are useful to you. Thanks.
* If you have a payment problem, you can purchase it via PC. http://market.android.com/
* In some countries, the price unit is shown as . The price is $2.5 (= 1.7 Euros)
* Smart Distance app is not included yet.