- Calculates interior (inside) and exterior (outside) angles easily and accurately in seconds
- Lock and reverse angle features for all types of work
- Large easy to read LCD display
- One button activates the reverse angle function, a hold button saves the angle manually
- Large ergonomic locking knob
- Hinge mechanism allows for full 360° to measure inside, outside and reverse angles
- Can be angles at any point in the swing
- Includes one #CR2032 3 volt lithium battery