Features:1. Professionally measure the inner and outer angles and angles of objects
2.0-360 ° complete measurement.
3.Easy to lock at any angle, compact, accurate measurement, easy to read.
4. With a locking knob, convenient to lock the angle at any position.
5. 5 minutes automatically shut down, induction automatically boot.
6.Button function:open / key, clear key, data hold button, degree and degree conversion button
Specifications:0-200mm/0-300mm for choose
Measuring range:0-360 °
Accuracy:± 0.3 °
Operation time:5,000 hours
Operating temperature:0 °C – +50 °C
Automatic closed screen time:6min
Usages:Measurement of angle and length
Packing includes:1 X Goniometer