Decibel X - dB Sound Level Meter, Noise Detector
Toolbox - Smart, Handy Carpenter Measurement Tools
Protractor 1st
Ruler 2nd
Spirit Level 3rd
Surface Level 4th
Stopwatch 7th
Timer 8th
Metronome 9th
Compass 12th
Seismometer 6th
Plumb Bob 5th
Teslameter 11th