Q: Where is this Pro 360 protractor manufactured?
This is a Kell-Strom unit, it is made in the USA.
Q: Does the Pro 360 Digital Protractor come with a calibration cert from the manufacturer?
This comes with a certificate of compliance but not a calibration certificate. Per the manual, the new digital protractor must be calibrated before use to ensure accurate readings. Included manual provides calibration instructions.
Q: What are the dimensions of the level how long is my concern?
8 LONG | 1 WIDE | 1-1/2 HIGH | 1-1/2 LBS
Q: Does this Pro 360 protractor unit come with a plastic case?
Yes it does.