Universal Protractor standard features include:

• Complies with BS1685
• Resolution of 5 arc minutes (1/12 degree)
• Fully hardened and ground stainless steel body
• Top mounted adjuster for fine setting whilst the unit is on a flat surface
• Choice of blade lengths
• Locking lever fitted for ease of blade insertion and positive clamping
• Bevelled blade ends to facilitate working in awkward corners
• Scale plate is graduated 0 - 90º - 0, in both directions through 360°
• Satin chrome plated scale for glare free readings
• Magnifying lens for clear easy reading of the flush scale, preventing parallax errors

Digital Protractor standard features include:

The digital protractor’s easy to read multifunctional display means that this instrument is capable of undertaking most angular measurement tasks with ease.

• Resolution 0.01º or 1 minute of arc
• Accuracy 4 minutes of arc
• Fine adjustment and locking device
• Multifunctional display
• Direct RS232 output
• Zero setting

Range

• With the aid of a push button the range can be selected according to the application.
  i.e 1 x 360º, 2 x 180º or 4 x 90º.
  Changing from reading of arc minutes to decimal indication by pressing a button.
  Example: Angle reading 35º30' changes to 35.50º.